| /* |
| * FFplay : Simple Media Player based on the ffmpeg libraries |
| * Copyright (c) 2003 Fabrice Bellard |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <math.h> |
| #include <limits.h> |
| #include "libavutil/avstring.h" |
| #include "libavformat/avformat.h" |
| #include "libavformat/rtsp.h" |
| #include "libavdevice/avdevice.h" |
| #include "libswscale/swscale.h" |
| #include "libavcodec/audioconvert.h" |
| #include "libavcodec/opt.h" |
| |
| #include "cmdutils.h" |
| |
| #include <SDL.h> |
| #include <SDL_thread.h> |
| |
| #ifdef __MINGW32__ |
| #undef main /* We don't want SDL to override our main() */ |
| #endif |
| |
| #undef exit |
| |
| const char program_name[] = "FFplay"; |
| const int program_birth_year = 2003; |
| |
| //#define DEBUG_SYNC |
| |
| #define MAX_VIDEOQ_SIZE (5 * 256 * 1024) |
| #define MAX_AUDIOQ_SIZE (5 * 16 * 1024) |
| #define MAX_SUBTITLEQ_SIZE (5 * 16 * 1024) |
| |
| /* SDL audio buffer size, in samples. Should be small to have precise |
| A/V sync as SDL does not have hardware buffer fullness info. */ |
| #define SDL_AUDIO_BUFFER_SIZE 1024 |
| |
| /* no AV sync correction is done if below the AV sync threshold */ |
| #define AV_SYNC_THRESHOLD 0.01 |
| /* no AV correction is done if too big error */ |
| #define AV_NOSYNC_THRESHOLD 10.0 |
| |
| /* maximum audio speed change to get correct sync */ |
| #define SAMPLE_CORRECTION_PERCENT_MAX 10 |
| |
| /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */ |
| #define AUDIO_DIFF_AVG_NB 20 |
| |
| /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */ |
| #define SAMPLE_ARRAY_SIZE (2*65536) |
| |
| static int sws_flags = SWS_BICUBIC; |
| |
| typedef struct PacketQueue { |
| AVPacketList *first_pkt, *last_pkt; |
| int nb_packets; |
| int size; |
| int abort_request; |
| SDL_mutex *mutex; |
| SDL_cond *cond; |
| } PacketQueue; |
| |
| #define VIDEO_PICTURE_QUEUE_SIZE 1 |
| #define SUBPICTURE_QUEUE_SIZE 4 |
| |
| typedef struct VideoPicture { |
| double pts; ///<presentation time stamp for this picture |
| SDL_Overlay *bmp; |
| int width, height; /* source height & width */ |
| int allocated; |
| } VideoPicture; |
| |
| typedef struct SubPicture { |
| double pts; /* presentation time stamp for this picture */ |
| AVSubtitle sub; |
| } SubPicture; |
| |
| enum { |
| AV_SYNC_AUDIO_MASTER, /* default choice */ |
| AV_SYNC_VIDEO_MASTER, |
| AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */ |
| }; |
| |
| typedef struct VideoState { |
| SDL_Thread *parse_tid; |
| SDL_Thread *video_tid; |
| AVInputFormat *iformat; |
| int no_background; |
| int abort_request; |
| int paused; |
| int last_paused; |
| int seek_req; |
| int seek_flags; |
| int64_t seek_pos; |
| AVFormatContext *ic; |
| int dtg_active_format; |
| |
| int audio_stream; |
| |
| int av_sync_type; |
| double external_clock; /* external clock base */ |
| int64_t external_clock_time; |
| |
| double audio_clock; |
| double audio_diff_cum; /* used for AV difference average computation */ |
| double audio_diff_avg_coef; |
| double audio_diff_threshold; |
| int audio_diff_avg_count; |
| AVStream *audio_st; |
| PacketQueue audioq; |
| int audio_hw_buf_size; |
| /* samples output by the codec. we reserve more space for avsync |
| compensation */ |
| DECLARE_ALIGNED(16,uint8_t,audio_buf1[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]); |
| DECLARE_ALIGNED(16,uint8_t,audio_buf2[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]); |
| uint8_t *audio_buf; |
| unsigned int audio_buf_size; /* in bytes */ |
| int audio_buf_index; /* in bytes */ |
| AVPacket audio_pkt; |
| uint8_t *audio_pkt_data; |
| int audio_pkt_size; |
| enum SampleFormat audio_src_fmt; |
| AVAudioConvert *reformat_ctx; |
| |
| int show_audio; /* if true, display audio samples */ |
| int16_t sample_array[SAMPLE_ARRAY_SIZE]; |
| int sample_array_index; |
| int last_i_start; |
| |
| SDL_Thread *subtitle_tid; |
| int subtitle_stream; |
| int subtitle_stream_changed; |
| AVStream *subtitle_st; |
| PacketQueue subtitleq; |
| SubPicture subpq[SUBPICTURE_QUEUE_SIZE]; |
| int subpq_size, subpq_rindex, subpq_windex; |
| SDL_mutex *subpq_mutex; |
| SDL_cond *subpq_cond; |
| |
| double frame_timer; |
| double frame_last_pts; |
| double frame_last_delay; |
| double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame |
| int video_stream; |
| AVStream *video_st; |
| PacketQueue videoq; |
| double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used) |
| int64_t video_current_pts_time; ///<time (av_gettime) at which we updated video_current_pts - used to have running video pts |
| VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE]; |
| int pictq_size, pictq_rindex, pictq_windex; |
| SDL_mutex *pictq_mutex; |
| SDL_cond *pictq_cond; |
| |
| // QETimer *video_timer; |
| char filename[1024]; |
| int width, height, xleft, ytop; |
| } VideoState; |
| |
| static void show_help(void); |
| static int audio_write_get_buf_size(VideoState *is); |
| |
| /* options specified by the user */ |
| static AVInputFormat *file_iformat; |
| static const char *input_filename; |
| static int fs_screen_width; |
| static int fs_screen_height; |
| static int screen_width = 0; |
| static int screen_height = 0; |
| static int frame_width = 0; |
| static int frame_height = 0; |
| static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE; |
| static int audio_disable; |
| static int video_disable; |
| static int wanted_audio_stream= 0; |
| static int wanted_video_stream= 0; |
| static int wanted_subtitle_stream= -1; |
| static int seek_by_bytes; |
| static int display_disable; |
| static int show_status; |
| static int av_sync_type = AV_SYNC_AUDIO_MASTER; |
| static int64_t start_time = AV_NOPTS_VALUE; |
| static int debug = 0; |
| static int debug_mv = 0; |
| static int step = 0; |
| static int thread_count = 1; |
| static int workaround_bugs = 1; |
| static int fast = 0; |
| static int genpts = 0; |
| static int lowres = 0; |
| static int idct = FF_IDCT_AUTO; |
| static enum AVDiscard skip_frame= AVDISCARD_DEFAULT; |
| static enum AVDiscard skip_idct= AVDISCARD_DEFAULT; |
| static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT; |
| static int error_recognition = FF_ER_CAREFUL; |
| static int error_concealment = 3; |
| static int decoder_reorder_pts= 0; |
| |
| /* current context */ |
| static int is_full_screen; |
| static VideoState *cur_stream; |
| static int64_t audio_callback_time; |
| |
| static AVPacket flush_pkt; |
| |
| #define FF_ALLOC_EVENT (SDL_USEREVENT) |
| #define FF_REFRESH_EVENT (SDL_USEREVENT + 1) |
| #define FF_QUIT_EVENT (SDL_USEREVENT + 2) |
| |
| static SDL_Surface *screen; |
| |
| /* packet queue handling */ |
| static void packet_queue_init(PacketQueue *q) |
| { |
| memset(q, 0, sizeof(PacketQueue)); |
| q->mutex = SDL_CreateMutex(); |
| q->cond = SDL_CreateCond(); |
| } |
| |
| static void packet_queue_flush(PacketQueue *q) |
| { |
| AVPacketList *pkt, *pkt1; |
| |
| SDL_LockMutex(q->mutex); |
| for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) { |
| pkt1 = pkt->next; |
| av_free_packet(&pkt->pkt); |
| av_freep(&pkt); |
| } |
| q->last_pkt = NULL; |
| q->first_pkt = NULL; |
| q->nb_packets = 0; |
| q->size = 0; |
| SDL_UnlockMutex(q->mutex); |
| } |
| |
| static void packet_queue_end(PacketQueue *q) |
| { |
| packet_queue_flush(q); |
| SDL_DestroyMutex(q->mutex); |
| SDL_DestroyCond(q->cond); |
| } |
| |
| static int packet_queue_put(PacketQueue *q, AVPacket *pkt) |
| { |
| AVPacketList *pkt1; |
| |
| /* duplicate the packet */ |
| if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0) |
| return -1; |
| |
| pkt1 = av_malloc(sizeof(AVPacketList)); |
| if (!pkt1) |
| return -1; |
| pkt1->pkt = *pkt; |
| pkt1->next = NULL; |
| |
| |
| SDL_LockMutex(q->mutex); |
| |
| if (!q->last_pkt) |
| |
| q->first_pkt = pkt1; |
| else |
| q->last_pkt->next = pkt1; |
| q->last_pkt = pkt1; |
| q->nb_packets++; |
| q->size += pkt1->pkt.size + sizeof(*pkt1); |
| /* XXX: should duplicate packet data in DV case */ |
| SDL_CondSignal(q->cond); |
| |
| SDL_UnlockMutex(q->mutex); |
| return 0; |
| } |
| |
| static void packet_queue_abort(PacketQueue *q) |
| { |
| SDL_LockMutex(q->mutex); |
| |
| q->abort_request = 1; |
| |
| SDL_CondSignal(q->cond); |
| |
| SDL_UnlockMutex(q->mutex); |
| } |
| |
| /* return < 0 if aborted, 0 if no packet and > 0 if packet. */ |
| static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block) |
| { |
| AVPacketList *pkt1; |
| int ret; |
| |
| SDL_LockMutex(q->mutex); |
| |
| for(;;) { |
| if (q->abort_request) { |
| ret = -1; |
| break; |
| } |
| |
| pkt1 = q->first_pkt; |
| if (pkt1) { |
| q->first_pkt = pkt1->next; |
| if (!q->first_pkt) |
| q->last_pkt = NULL; |
| q->nb_packets--; |
| q->size -= pkt1->pkt.size + sizeof(*pkt1); |
| *pkt = pkt1->pkt; |
| av_free(pkt1); |
| ret = 1; |
| break; |
| } else if (!block) { |
| ret = 0; |
| break; |
| } else { |
| SDL_CondWait(q->cond, q->mutex); |
| } |
| } |
| SDL_UnlockMutex(q->mutex); |
| return ret; |
| } |
| |
| static inline void fill_rectangle(SDL_Surface *screen, |
| int x, int y, int w, int h, int color) |
| { |
| SDL_Rect rect; |
| rect.x = x; |
| rect.y = y; |
| rect.w = w; |
| rect.h = h; |
| SDL_FillRect(screen, &rect, color); |
| } |
| |
| #if 0 |
| /* draw only the border of a rectangle */ |
| void fill_border(VideoState *s, int x, int y, int w, int h, int color) |
| { |
| int w1, w2, h1, h2; |
| |
| /* fill the background */ |
| w1 = x; |
| if (w1 < 0) |
| w1 = 0; |
| w2 = s->width - (x + w); |
| if (w2 < 0) |
| w2 = 0; |
| h1 = y; |
| if (h1 < 0) |
| h1 = 0; |
| h2 = s->height - (y + h); |
| if (h2 < 0) |
| h2 = 0; |
| fill_rectangle(screen, |
| s->xleft, s->ytop, |
| w1, s->height, |
| color); |
| fill_rectangle(screen, |
| s->xleft + s->width - w2, s->ytop, |
| w2, s->height, |
| color); |
| fill_rectangle(screen, |
| s->xleft + w1, s->ytop, |
| s->width - w1 - w2, h1, |
| color); |
| fill_rectangle(screen, |
| s->xleft + w1, s->ytop + s->height - h2, |
| s->width - w1 - w2, h2, |
| color); |
| } |
| #endif |
| |
| |
| |
| #define SCALEBITS 10 |
| #define ONE_HALF (1 << (SCALEBITS - 1)) |
| #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5)) |
| |
| #define RGB_TO_Y_CCIR(r, g, b) \ |
| ((FIX(0.29900*219.0/255.0) * (r) + FIX(0.58700*219.0/255.0) * (g) + \ |
| FIX(0.11400*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS) |
| |
| #define RGB_TO_U_CCIR(r1, g1, b1, shift)\ |
| (((- FIX(0.16874*224.0/255.0) * r1 - FIX(0.33126*224.0/255.0) * g1 + \ |
| FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128) |
| |
| #define RGB_TO_V_CCIR(r1, g1, b1, shift)\ |
| (((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 - \ |
| FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128) |
| |
| #define ALPHA_BLEND(a, oldp, newp, s)\ |
| ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s)) |
| |
| #define RGBA_IN(r, g, b, a, s)\ |
| {\ |
| unsigned int v = ((const uint32_t *)(s))[0];\ |
| a = (v >> 24) & 0xff;\ |
| r = (v >> 16) & 0xff;\ |
| g = (v >> 8) & 0xff;\ |
| b = v & 0xff;\ |
| } |
| |
| #define YUVA_IN(y, u, v, a, s, pal)\ |
| {\ |
| unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\ |
| a = (val >> 24) & 0xff;\ |
| y = (val >> 16) & 0xff;\ |
| u = (val >> 8) & 0xff;\ |
| v = val & 0xff;\ |
| } |
| |
| #define YUVA_OUT(d, y, u, v, a)\ |
| {\ |
| ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\ |
| } |
| |
| |
| #define BPP 1 |
| |
| static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh) |
| { |
| int wrap, wrap3, width2, skip2; |
| int y, u, v, a, u1, v1, a1, w, h; |
| uint8_t *lum, *cb, *cr; |
| const uint8_t *p; |
| const uint32_t *pal; |
| int dstx, dsty, dstw, dsth; |
| |
| dstw = av_clip(rect->w, 0, imgw); |
| dsth = av_clip(rect->h, 0, imgh); |
| dstx = av_clip(rect->x, 0, imgw - dstw); |
| dsty = av_clip(rect->y, 0, imgh - dsth); |
| lum = dst->data[0] + dsty * dst->linesize[0]; |
| cb = dst->data[1] + (dsty >> 1) * dst->linesize[1]; |
| cr = dst->data[2] + (dsty >> 1) * dst->linesize[2]; |
| |
| width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1); |
| skip2 = dstx >> 1; |
| wrap = dst->linesize[0]; |
| wrap3 = rect->pict.linesize[0]; |
| p = rect->pict.data[0]; |
| pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */ |
| |
| if (dsty & 1) { |
| lum += dstx; |
| cb += skip2; |
| cr += skip2; |
| |
| if (dstx & 1) { |
| YUVA_IN(y, u, v, a, p, pal); |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); |
| cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); |
| cb++; |
| cr++; |
| lum++; |
| p += BPP; |
| } |
| for(w = dstw - (dstx & 1); w >= 2; w -= 2) { |
| YUVA_IN(y, u, v, a, p, pal); |
| u1 = u; |
| v1 = v; |
| a1 = a; |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| |
| YUVA_IN(y, u, v, a, p + BPP, pal); |
| u1 += u; |
| v1 += v; |
| a1 += a; |
| lum[1] = ALPHA_BLEND(a, lum[1], y, 0); |
| cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); |
| cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); |
| cb++; |
| cr++; |
| p += 2 * BPP; |
| lum += 2; |
| } |
| if (w) { |
| YUVA_IN(y, u, v, a, p, pal); |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); |
| cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); |
| p++; |
| lum++; |
| } |
| p += wrap3 - dstw * BPP; |
| lum += wrap - dstw - dstx; |
| cb += dst->linesize[1] - width2 - skip2; |
| cr += dst->linesize[2] - width2 - skip2; |
| } |
| for(h = dsth - (dsty & 1); h >= 2; h -= 2) { |
| lum += dstx; |
| cb += skip2; |
| cr += skip2; |
| |
| if (dstx & 1) { |
| YUVA_IN(y, u, v, a, p, pal); |
| u1 = u; |
| v1 = v; |
| a1 = a; |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| p += wrap3; |
| lum += wrap; |
| YUVA_IN(y, u, v, a, p, pal); |
| u1 += u; |
| v1 += v; |
| a1 += a; |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); |
| cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); |
| cb++; |
| cr++; |
| p += -wrap3 + BPP; |
| lum += -wrap + 1; |
| } |
| for(w = dstw - (dstx & 1); w >= 2; w -= 2) { |
| YUVA_IN(y, u, v, a, p, pal); |
| u1 = u; |
| v1 = v; |
| a1 = a; |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| |
| YUVA_IN(y, u, v, a, p + BPP, pal); |
| u1 += u; |
| v1 += v; |
| a1 += a; |
| lum[1] = ALPHA_BLEND(a, lum[1], y, 0); |
| p += wrap3; |
| lum += wrap; |
| |
| YUVA_IN(y, u, v, a, p, pal); |
| u1 += u; |
| v1 += v; |
| a1 += a; |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| |
| YUVA_IN(y, u, v, a, p + BPP, pal); |
| u1 += u; |
| v1 += v; |
| a1 += a; |
| lum[1] = ALPHA_BLEND(a, lum[1], y, 0); |
| |
| cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2); |
| cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2); |
| |
| cb++; |
| cr++; |
| p += -wrap3 + 2 * BPP; |
| lum += -wrap + 2; |
| } |
| if (w) { |
| YUVA_IN(y, u, v, a, p, pal); |
| u1 = u; |
| v1 = v; |
| a1 = a; |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| p += wrap3; |
| lum += wrap; |
| YUVA_IN(y, u, v, a, p, pal); |
| u1 += u; |
| v1 += v; |
| a1 += a; |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); |
| cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); |
| cb++; |
| cr++; |
| p += -wrap3 + BPP; |
| lum += -wrap + 1; |
| } |
| p += wrap3 + (wrap3 - dstw * BPP); |
| lum += wrap + (wrap - dstw - dstx); |
| cb += dst->linesize[1] - width2 - skip2; |
| cr += dst->linesize[2] - width2 - skip2; |
| } |
| /* handle odd height */ |
| if (h) { |
| lum += dstx; |
| cb += skip2; |
| cr += skip2; |
| |
| if (dstx & 1) { |
| YUVA_IN(y, u, v, a, p, pal); |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); |
| cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); |
| cb++; |
| cr++; |
| lum++; |
| p += BPP; |
| } |
| for(w = dstw - (dstx & 1); w >= 2; w -= 2) { |
| YUVA_IN(y, u, v, a, p, pal); |
| u1 = u; |
| v1 = v; |
| a1 = a; |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| |
| YUVA_IN(y, u, v, a, p + BPP, pal); |
| u1 += u; |
| v1 += v; |
| a1 += a; |
| lum[1] = ALPHA_BLEND(a, lum[1], y, 0); |
| cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1); |
| cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1); |
| cb++; |
| cr++; |
| p += 2 * BPP; |
| lum += 2; |
| } |
| if (w) { |
| YUVA_IN(y, u, v, a, p, pal); |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); |
| cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); |
| } |
| } |
| } |
| |
| static void free_subpicture(SubPicture *sp) |
| { |
| int i; |
| |
| for (i = 0; i < sp->sub.num_rects; i++) |
| { |
| av_freep(&sp->sub.rects[i]->pict.data[0]); |
| av_freep(&sp->sub.rects[i]->pict.data[1]); |
| av_freep(&sp->sub.rects[i]); |
| } |
| |
| av_free(sp->sub.rects); |
| |
| memset(&sp->sub, 0, sizeof(AVSubtitle)); |
| } |
| |
| static void video_image_display(VideoState *is) |
| { |
| VideoPicture *vp; |
| SubPicture *sp; |
| AVPicture pict; |
| float aspect_ratio; |
| int width, height, x, y; |
| SDL_Rect rect; |
| int i; |
| |
| vp = &is->pictq[is->pictq_rindex]; |
| if (vp->bmp) { |
| /* XXX: use variable in the frame */ |
| if (is->video_st->sample_aspect_ratio.num) |
| aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio); |
| else if (is->video_st->codec->sample_aspect_ratio.num) |
| aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio); |
| else |
| aspect_ratio = 0; |
| if (aspect_ratio <= 0.0) |
| aspect_ratio = 1.0; |
| aspect_ratio *= (float)is->video_st->codec->width / is->video_st->codec->height; |
| /* if an active format is indicated, then it overrides the |
| mpeg format */ |
| #if 0 |
| if (is->video_st->codec->dtg_active_format != is->dtg_active_format) { |
| is->dtg_active_format = is->video_st->codec->dtg_active_format; |
| printf("dtg_active_format=%d\n", is->dtg_active_format); |
| } |
| #endif |
| #if 0 |
| switch(is->video_st->codec->dtg_active_format) { |
| case FF_DTG_AFD_SAME: |
| default: |
| /* nothing to do */ |
| break; |
| case FF_DTG_AFD_4_3: |
| aspect_ratio = 4.0 / 3.0; |
| break; |
| case FF_DTG_AFD_16_9: |
| aspect_ratio = 16.0 / 9.0; |
| break; |
| case FF_DTG_AFD_14_9: |
| aspect_ratio = 14.0 / 9.0; |
| break; |
| case FF_DTG_AFD_4_3_SP_14_9: |
| aspect_ratio = 14.0 / 9.0; |
| break; |
| case FF_DTG_AFD_16_9_SP_14_9: |
| aspect_ratio = 14.0 / 9.0; |
| break; |
| case FF_DTG_AFD_SP_4_3: |
| aspect_ratio = 4.0 / 3.0; |
| break; |
| } |
| #endif |
| |
| if (is->subtitle_st) |
| { |
| if (is->subpq_size > 0) |
| { |
| sp = &is->subpq[is->subpq_rindex]; |
| |
| if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) |
| { |
| SDL_LockYUVOverlay (vp->bmp); |
| |
| pict.data[0] = vp->bmp->pixels[0]; |
| pict.data[1] = vp->bmp->pixels[2]; |
| pict.data[2] = vp->bmp->pixels[1]; |
| |
| pict.linesize[0] = vp->bmp->pitches[0]; |
| pict.linesize[1] = vp->bmp->pitches[2]; |
| pict.linesize[2] = vp->bmp->pitches[1]; |
| |
| for (i = 0; i < sp->sub.num_rects; i++) |
| blend_subrect(&pict, sp->sub.rects[i], |
| vp->bmp->w, vp->bmp->h); |
| |
| SDL_UnlockYUVOverlay (vp->bmp); |
| } |
| } |
| } |
| |
| |
| /* XXX: we suppose the screen has a 1.0 pixel ratio */ |
| height = is->height; |
| width = ((int)rint(height * aspect_ratio)) & ~1; |
| if (width > is->width) { |
| width = is->width; |
| height = ((int)rint(width / aspect_ratio)) & ~1; |
| } |
| x = (is->width - width) / 2; |
| y = (is->height - height) / 2; |
| if (!is->no_background) { |
| /* fill the background */ |
| // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00)); |
| } else { |
| is->no_background = 0; |
| } |
| rect.x = is->xleft + x; |
| rect.y = is->ytop + y; |
| rect.w = width; |
| rect.h = height; |
| SDL_DisplayYUVOverlay(vp->bmp, &rect); |
| } else { |
| #if 0 |
| fill_rectangle(screen, |
| is->xleft, is->ytop, is->width, is->height, |
| QERGB(0x00, 0x00, 0x00)); |
| #endif |
| } |
| } |
| |
| static inline int compute_mod(int a, int b) |
| { |
| a = a % b; |
| if (a >= 0) |
| return a; |
| else |
| return a + b; |
| } |
| |
| static void video_audio_display(VideoState *s) |
| { |
| int i, i_start, x, y1, y, ys, delay, n, nb_display_channels; |
| int ch, channels, h, h2, bgcolor, fgcolor; |
| int16_t time_diff; |
| |
| /* compute display index : center on currently output samples */ |
| channels = s->audio_st->codec->channels; |
| nb_display_channels = channels; |
| if (!s->paused) { |
| n = 2 * channels; |
| delay = audio_write_get_buf_size(s); |
| delay /= n; |
| |
| /* to be more precise, we take into account the time spent since |
| the last buffer computation */ |
| if (audio_callback_time) { |
| time_diff = av_gettime() - audio_callback_time; |
| delay += (time_diff * s->audio_st->codec->sample_rate) / 1000000; |
| } |
| |
| delay -= s->width / 2; |
| if (delay < s->width) |
| delay = s->width; |
| |
| i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE); |
| |
| h= INT_MIN; |
| for(i=0; i<1000; i+=channels){ |
| int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE; |
| int a= s->sample_array[idx]; |
| int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE]; |
| int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE]; |
| int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE]; |
| int score= a-d; |
| if(h<score && (b^c)<0){ |
| h= score; |
| i_start= idx; |
| } |
| } |
| |
| s->last_i_start = i_start; |
| } else { |
| i_start = s->last_i_start; |
| } |
| |
| bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); |
| fill_rectangle(screen, |
| s->xleft, s->ytop, s->width, s->height, |
| bgcolor); |
| |
| fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff); |
| |
| /* total height for one channel */ |
| h = s->height / nb_display_channels; |
| /* graph height / 2 */ |
| h2 = (h * 9) / 20; |
| for(ch = 0;ch < nb_display_channels; ch++) { |
| i = i_start + ch; |
| y1 = s->ytop + ch * h + (h / 2); /* position of center line */ |
| for(x = 0; x < s->width; x++) { |
| y = (s->sample_array[i] * h2) >> 15; |
| if (y < 0) { |
| y = -y; |
| ys = y1 - y; |
| } else { |
| ys = y1; |
| } |
| fill_rectangle(screen, |
| s->xleft + x, ys, 1, y, |
| fgcolor); |
| i += channels; |
| if (i >= SAMPLE_ARRAY_SIZE) |
| i -= SAMPLE_ARRAY_SIZE; |
| } |
| } |
| |
| fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff); |
| |
| for(ch = 1;ch < nb_display_channels; ch++) { |
| y = s->ytop + ch * h; |
| fill_rectangle(screen, |
| s->xleft, y, s->width, 1, |
| fgcolor); |
| } |
| SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height); |
| } |
| |
| static int video_open(VideoState *is){ |
| int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL; |
| int w,h; |
| |
| if(is_full_screen) flags |= SDL_FULLSCREEN; |
| else flags |= SDL_RESIZABLE; |
| |
| if (is_full_screen && fs_screen_width) { |
| w = fs_screen_width; |
| h = fs_screen_height; |
| } else if(!is_full_screen && screen_width){ |
| w = screen_width; |
| h = screen_height; |
| }else if (is->video_st && is->video_st->codec->width){ |
| w = is->video_st->codec->width; |
| h = is->video_st->codec->height; |
| } else { |
| w = 640; |
| h = 480; |
| } |
| #ifndef __APPLE__ |
| screen = SDL_SetVideoMode(w, h, 0, flags); |
| #else |
| /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */ |
| screen = SDL_SetVideoMode(w, h, 24, flags); |
| #endif |
| if (!screen) { |
| fprintf(stderr, "SDL: could not set video mode - exiting\n"); |
| return -1; |
| } |
| SDL_WM_SetCaption("FFplay", "FFplay"); |
| |
| is->width = screen->w; |
| is->height = screen->h; |
| |
| return 0; |
| } |
| |
| /* display the current picture, if any */ |
| static void video_display(VideoState *is) |
| { |
| if(!screen) |
| video_open(cur_stream); |
| if (is->audio_st && is->show_audio) |
| video_audio_display(is); |
| else if (is->video_st) |
| video_image_display(is); |
| } |
| |
| static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque) |
| { |
| SDL_Event event; |
| event.type = FF_REFRESH_EVENT; |
| event.user.data1 = opaque; |
| SDL_PushEvent(&event); |
| return 0; /* 0 means stop timer */ |
| } |
| |
| /* schedule a video refresh in 'delay' ms */ |
| static void schedule_refresh(VideoState *is, int delay) |
| { |
| if(!delay) delay=1; //SDL seems to be buggy when the delay is 0 |
| SDL_AddTimer(delay, sdl_refresh_timer_cb, is); |
| } |
| |
| /* get the current audio clock value */ |
| static double get_audio_clock(VideoState *is) |
| { |
| double pts; |
| int hw_buf_size, bytes_per_sec; |
| pts = is->audio_clock; |
| hw_buf_size = audio_write_get_buf_size(is); |
| bytes_per_sec = 0; |
| if (is->audio_st) { |
| bytes_per_sec = is->audio_st->codec->sample_rate * |
| 2 * is->audio_st->codec->channels; |
| } |
| if (bytes_per_sec) |
| pts -= (double)hw_buf_size / bytes_per_sec; |
| return pts; |
| } |
| |
| /* get the current video clock value */ |
| static double get_video_clock(VideoState *is) |
| { |
| double delta; |
| if (is->paused) { |
| delta = 0; |
| } else { |
| delta = (av_gettime() - is->video_current_pts_time) / 1000000.0; |
| } |
| return is->video_current_pts + delta; |
| } |
| |
| /* get the current external clock value */ |
| static double get_external_clock(VideoState *is) |
| { |
| int64_t ti; |
| ti = av_gettime(); |
| return is->external_clock + ((ti - is->external_clock_time) * 1e-6); |
| } |
| |
| /* get the current master clock value */ |
| static double get_master_clock(VideoState *is) |
| { |
| double val; |
| |
| if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) { |
| if (is->video_st) |
| val = get_video_clock(is); |
| else |
| val = get_audio_clock(is); |
| } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) { |
| if (is->audio_st) |
| val = get_audio_clock(is); |
| else |
| val = get_video_clock(is); |
| } else { |
| val = get_external_clock(is); |
| } |
| return val; |
| } |
| |
| /* seek in the stream */ |
| static void stream_seek(VideoState *is, int64_t pos, int rel) |
| { |
| if (!is->seek_req) { |
| is->seek_pos = pos; |
| is->seek_flags = rel < 0 ? AVSEEK_FLAG_BACKWARD : 0; |
| if (seek_by_bytes) |
| is->seek_flags |= AVSEEK_FLAG_BYTE; |
| is->seek_req = 1; |
| } |
| } |
| |
| /* pause or resume the video */ |
| static void stream_pause(VideoState *is) |
| { |
| is->paused = !is->paused; |
| if (!is->paused) { |
| is->video_current_pts = get_video_clock(is); |
| is->frame_timer += (av_gettime() - is->video_current_pts_time) / 1000000.0; |
| } |
| } |
| |
| static double compute_frame_delay(double frame_current_pts, VideoState *is) |
| { |
| double actual_delay, delay, sync_threshold, ref_clock, diff; |
| |
| /* compute nominal delay */ |
| delay = frame_current_pts - is->frame_last_pts; |
| if (delay <= 0 || delay >= 10.0) { |
| /* if incorrect delay, use previous one */ |
| delay = is->frame_last_delay; |
| } else { |
| is->frame_last_delay = delay; |
| } |
| is->frame_last_pts = frame_current_pts; |
| |
| /* update delay to follow master synchronisation source */ |
| if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) || |
| is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) { |
| /* if video is slave, we try to correct big delays by |
| duplicating or deleting a frame */ |
| ref_clock = get_master_clock(is); |
| diff = frame_current_pts - ref_clock; |
| |
| /* skip or repeat frame. We take into account the |
| delay to compute the threshold. I still don't know |
| if it is the best guess */ |
| sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay); |
| if (fabs(diff) < AV_NOSYNC_THRESHOLD) { |
| if (diff <= -sync_threshold) |
| delay = 0; |
| else if (diff >= sync_threshold) |
| delay = 2 * delay; |
| } |
| } |
| |
| is->frame_timer += delay; |
| /* compute the REAL delay (we need to do that to avoid |
| long term errors */ |
| actual_delay = is->frame_timer - (av_gettime() / 1000000.0); |
| if (actual_delay < 0.010) { |
| /* XXX: should skip picture */ |
| actual_delay = 0.010; |
| } |
| |
| #if defined(DEBUG_SYNC) |
| printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n", |
| delay, actual_delay, frame_current_pts, -diff); |
| #endif |
| |
| return actual_delay; |
| } |
| |
| /* called to display each frame */ |
| static void video_refresh_timer(void *opaque) |
| { |
| VideoState *is = opaque; |
| VideoPicture *vp; |
| |
| SubPicture *sp, *sp2; |
| |
| if (is->video_st) { |
| if (is->pictq_size == 0) { |
| /* if no picture, need to wait */ |
| schedule_refresh(is, 1); |
| } else { |
| /* dequeue the picture */ |
| vp = &is->pictq[is->pictq_rindex]; |
| |
| /* update current video pts */ |
| is->video_current_pts = vp->pts; |
| is->video_current_pts_time = av_gettime(); |
| |
| /* launch timer for next picture */ |
| schedule_refresh(is, (int)(compute_frame_delay(vp->pts, is) * 1000 + 0.5)); |
| |
| if(is->subtitle_st) { |
| if (is->subtitle_stream_changed) { |
| SDL_LockMutex(is->subpq_mutex); |
| |
| while (is->subpq_size) { |
| free_subpicture(&is->subpq[is->subpq_rindex]); |
| |
| /* update queue size and signal for next picture */ |
| if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE) |
| is->subpq_rindex = 0; |
| |
| is->subpq_size--; |
| } |
| is->subtitle_stream_changed = 0; |
| |
| SDL_CondSignal(is->subpq_cond); |
| SDL_UnlockMutex(is->subpq_mutex); |
| } else { |
| if (is->subpq_size > 0) { |
| sp = &is->subpq[is->subpq_rindex]; |
| |
| if (is->subpq_size > 1) |
| sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE]; |
| else |
| sp2 = NULL; |
| |
| if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000))) |
| || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000)))) |
| { |
| free_subpicture(sp); |
| |
| /* update queue size and signal for next picture */ |
| if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE) |
| is->subpq_rindex = 0; |
| |
| SDL_LockMutex(is->subpq_mutex); |
| is->subpq_size--; |
| SDL_CondSignal(is->subpq_cond); |
| SDL_UnlockMutex(is->subpq_mutex); |
| } |
| } |
| } |
| } |
| |
| /* display picture */ |
| video_display(is); |
| |
| /* update queue size and signal for next picture */ |
| if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE) |
| is->pictq_rindex = 0; |
| |
| SDL_LockMutex(is->pictq_mutex); |
| is->pictq_size--; |
| SDL_CondSignal(is->pictq_cond); |
| SDL_UnlockMutex(is->pictq_mutex); |
| } |
| } else if (is->audio_st) { |
| /* draw the next audio frame */ |
| |
| schedule_refresh(is, 40); |
| |
| /* if only audio stream, then display the audio bars (better |
| than nothing, just to test the implementation */ |
| |
| /* display picture */ |
| video_display(is); |
| } else { |
| schedule_refresh(is, 100); |
| } |
| if (show_status) { |
| static int64_t last_time; |
| int64_t cur_time; |
| int aqsize, vqsize, sqsize; |
| double av_diff; |
| |
| cur_time = av_gettime(); |
| if (!last_time || (cur_time - last_time) >= 500 * 1000) { |
| aqsize = 0; |
| vqsize = 0; |
| sqsize = 0; |
| if (is->audio_st) |
| aqsize = is->audioq.size; |
| if (is->video_st) |
| vqsize = is->videoq.size; |
| if (is->subtitle_st) |
| sqsize = is->subtitleq.size; |
| av_diff = 0; |
| if (is->audio_st && is->video_st) |
| av_diff = get_audio_clock(is) - get_video_clock(is); |
| printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB \r", |
| get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize); |
| fflush(stdout); |
| last_time = cur_time; |
| } |
| } |
| } |
| |
| /* allocate a picture (needs to do that in main thread to avoid |
| potential locking problems */ |
| static void alloc_picture(void *opaque) |
| { |
| VideoState *is = opaque; |
| VideoPicture *vp; |
| |
| vp = &is->pictq[is->pictq_windex]; |
| |
| if (vp->bmp) |
| SDL_FreeYUVOverlay(vp->bmp); |
| |
| #if 0 |
| /* XXX: use generic function */ |
| /* XXX: disable overlay if no hardware acceleration or if RGB format */ |
| switch(is->video_st->codec->pix_fmt) { |
| case PIX_FMT_YUV420P: |
| case PIX_FMT_YUV422P: |
| case PIX_FMT_YUV444P: |
| case PIX_FMT_YUYV422: |
| case PIX_FMT_YUV410P: |
| case PIX_FMT_YUV411P: |
| is_yuv = 1; |
| break; |
| default: |
| is_yuv = 0; |
| break; |
| } |
| #endif |
| vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width, |
| is->video_st->codec->height, |
| SDL_YV12_OVERLAY, |
| screen); |
| vp->width = is->video_st->codec->width; |
| vp->height = is->video_st->codec->height; |
| |
| SDL_LockMutex(is->pictq_mutex); |
| vp->allocated = 1; |
| SDL_CondSignal(is->pictq_cond); |
| SDL_UnlockMutex(is->pictq_mutex); |
| } |
| |
| /** |
| * |
| * @param pts the dts of the pkt / pts of the frame and guessed if not known |
| */ |
| static int queue_picture(VideoState *is, AVFrame *src_frame, double pts) |
| { |
| VideoPicture *vp; |
| int dst_pix_fmt; |
| AVPicture pict; |
| static struct SwsContext *img_convert_ctx; |
| |
| /* wait until we have space to put a new picture */ |
| SDL_LockMutex(is->pictq_mutex); |
| while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE && |
| !is->videoq.abort_request) { |
| SDL_CondWait(is->pictq_cond, is->pictq_mutex); |
| } |
| SDL_UnlockMutex(is->pictq_mutex); |
| |
| if (is->videoq.abort_request) |
| return -1; |
| |
| vp = &is->pictq[is->pictq_windex]; |
| |
| /* alloc or resize hardware picture buffer */ |
| if (!vp->bmp || |
| vp->width != is->video_st->codec->width || |
| vp->height != is->video_st->codec->height) { |
| SDL_Event event; |
| |
| vp->allocated = 0; |
| |
| /* the allocation must be done in the main thread to avoid |
| locking problems */ |
| event.type = FF_ALLOC_EVENT; |
| event.user.data1 = is; |
| SDL_PushEvent(&event); |
| |
| /* wait until the picture is allocated */ |
| SDL_LockMutex(is->pictq_mutex); |
| while (!vp->allocated && !is->videoq.abort_request) { |
| SDL_CondWait(is->pictq_cond, is->pictq_mutex); |
| } |
| SDL_UnlockMutex(is->pictq_mutex); |
| |
| if (is->videoq.abort_request) |
| return -1; |
| } |
| |
| /* if the frame is not skipped, then display it */ |
| if (vp->bmp) { |
| /* get a pointer on the bitmap */ |
| SDL_LockYUVOverlay (vp->bmp); |
| |
| dst_pix_fmt = PIX_FMT_YUV420P; |
| pict.data[0] = vp->bmp->pixels[0]; |
| pict.data[1] = vp->bmp->pixels[2]; |
| pict.data[2] = vp->bmp->pixels[1]; |
| |
| pict.linesize[0] = vp->bmp->pitches[0]; |
| pict.linesize[1] = vp->bmp->pitches[2]; |
| pict.linesize[2] = vp->bmp->pitches[1]; |
| sws_flags = av_get_int(sws_opts, "sws_flags", NULL); |
| img_convert_ctx = sws_getCachedContext(img_convert_ctx, |
| is->video_st->codec->width, is->video_st->codec->height, |
| is->video_st->codec->pix_fmt, |
| is->video_st->codec->width, is->video_st->codec->height, |
| dst_pix_fmt, sws_flags, NULL, NULL, NULL); |
| if (img_convert_ctx == NULL) { |
| fprintf(stderr, "Cannot initialize the conversion context\n"); |
| exit(1); |
| } |
| sws_scale(img_convert_ctx, src_frame->data, src_frame->linesize, |
| 0, is->video_st->codec->height, pict.data, pict.linesize); |
| /* update the bitmap content */ |
| SDL_UnlockYUVOverlay(vp->bmp); |
| |
| vp->pts = pts; |
| |
| /* now we can update the picture count */ |
| if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE) |
| is->pictq_windex = 0; |
| SDL_LockMutex(is->pictq_mutex); |
| is->pictq_size++; |
| SDL_UnlockMutex(is->pictq_mutex); |
| } |
| return 0; |
| } |
| |
| /** |
| * compute the exact PTS for the picture if it is omitted in the stream |
| * @param pts1 the dts of the pkt / pts of the frame |
| */ |
| static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1) |
| { |
| double frame_delay, pts; |
| |
| pts = pts1; |
| |
| if (pts != 0) { |
| /* update video clock with pts, if present */ |
| is->video_clock = pts; |
| } else { |
| pts = is->video_clock; |
| } |
| /* update video clock for next frame */ |
| frame_delay = av_q2d(is->video_st->codec->time_base); |
| /* for MPEG2, the frame can be repeated, so we update the |
| clock accordingly */ |
| frame_delay += src_frame->repeat_pict * (frame_delay * 0.5); |
| is->video_clock += frame_delay; |
| |
| #if defined(DEBUG_SYNC) && 0 |
| { |
| int ftype; |
| if (src_frame->pict_type == FF_B_TYPE) |
| ftype = 'B'; |
| else if (src_frame->pict_type == FF_I_TYPE) |
| ftype = 'I'; |
| else |
| ftype = 'P'; |
| printf("frame_type=%c clock=%0.3f pts=%0.3f\n", |
| ftype, pts, pts1); |
| } |
| #endif |
| return queue_picture(is, src_frame, pts); |
| } |
| |
| static int video_thread(void *arg) |
| { |
| VideoState *is = arg; |
| AVPacket pkt1, *pkt = &pkt1; |
| int len1, got_picture; |
| AVFrame *frame= avcodec_alloc_frame(); |
| double pts; |
| |
| for(;;) { |
| while (is->paused && !is->videoq.abort_request) { |
| SDL_Delay(10); |
| } |
| if (packet_queue_get(&is->videoq, pkt, 1) < 0) |
| break; |
| |
| if(pkt->data == flush_pkt.data){ |
| avcodec_flush_buffers(is->video_st->codec); |
| continue; |
| } |
| |
| /* NOTE: ipts is the PTS of the _first_ picture beginning in |
| this packet, if any */ |
| is->video_st->codec->reordered_opaque= pkt->pts; |
| len1 = avcodec_decode_video(is->video_st->codec, |
| frame, &got_picture, |
| pkt->data, pkt->size); |
| |
| if( (decoder_reorder_pts || pkt->dts == AV_NOPTS_VALUE) |
| && frame->reordered_opaque != AV_NOPTS_VALUE) |
| pts= frame->reordered_opaque; |
| else if(pkt->dts != AV_NOPTS_VALUE) |
| pts= pkt->dts; |
| else |
| pts= 0; |
| pts *= av_q2d(is->video_st->time_base); |
| |
| // if (len1 < 0) |
| // break; |
| if (got_picture) { |
| if (output_picture2(is, frame, pts) < 0) |
| goto the_end; |
| } |
| av_free_packet(pkt); |
| if (step) |
| if (cur_stream) |
| stream_pause(cur_stream); |
| } |
| the_end: |
| av_free(frame); |
| return 0; |
| } |
| |
| static int subtitle_thread(void *arg) |
| { |
| VideoState *is = arg; |
| SubPicture *sp; |
| AVPacket pkt1, *pkt = &pkt1; |
| int len1, got_subtitle; |
| double pts; |
| int i, j; |
| int r, g, b, y, u, v, a; |
| |
| for(;;) { |
| while (is->paused && !is->subtitleq.abort_request) { |
| SDL_Delay(10); |
| } |
| if (packet_queue_get(&is->subtitleq, pkt, 1) < 0) |
| break; |
| |
| if(pkt->data == flush_pkt.data){ |
| avcodec_flush_buffers(is->subtitle_st->codec); |
| continue; |
| } |
| SDL_LockMutex(is->subpq_mutex); |
| while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE && |
| !is->subtitleq.abort_request) { |
| SDL_CondWait(is->subpq_cond, is->subpq_mutex); |
| } |
| SDL_UnlockMutex(is->subpq_mutex); |
| |
| if (is->subtitleq.abort_request) |
| goto the_end; |
| |
| sp = &is->subpq[is->subpq_windex]; |
| |
| /* NOTE: ipts is the PTS of the _first_ picture beginning in |
| this packet, if any */ |
| pts = 0; |
| if (pkt->pts != AV_NOPTS_VALUE) |
| pts = av_q2d(is->subtitle_st->time_base)*pkt->pts; |
| |
| len1 = avcodec_decode_subtitle(is->subtitle_st->codec, |
| &sp->sub, &got_subtitle, |
| pkt->data, pkt->size); |
| // if (len1 < 0) |
| // break; |
| if (got_subtitle && sp->sub.format == 0) { |
| sp->pts = pts; |
| |
| for (i = 0; i < sp->sub.num_rects; i++) |
| { |
| for (j = 0; j < sp->sub.rects[i]->nb_colors; j++) |
| { |
| RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j); |
| y = RGB_TO_Y_CCIR(r, g, b); |
| u = RGB_TO_U_CCIR(r, g, b, 0); |
| v = RGB_TO_V_CCIR(r, g, b, 0); |
| YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a); |
| } |
| } |
| |
| /* now we can update the picture count */ |
| if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE) |
| is->subpq_windex = 0; |
| SDL_LockMutex(is->subpq_mutex); |
| is->subpq_size++; |
| SDL_UnlockMutex(is->subpq_mutex); |
| } |
| av_free_packet(pkt); |
| // if (step) |
| // if (cur_stream) |
| // stream_pause(cur_stream); |
| } |
| the_end: |
| return 0; |
| } |
| |
| /* copy samples for viewing in editor window */ |
| static void update_sample_display(VideoState *is, short *samples, int samples_size) |
| { |
| int size, len, channels; |
| |
| channels = is->audio_st->codec->channels; |
| |
| size = samples_size / sizeof(short); |
| while (size > 0) { |
| len = SAMPLE_ARRAY_SIZE - is->sample_array_index; |
| if (len > size) |
| len = size; |
| memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short)); |
| samples += len; |
| is->sample_array_index += len; |
| if (is->sample_array_index >= SAMPLE_ARRAY_SIZE) |
| is->sample_array_index = 0; |
| size -= len; |
| } |
| } |
| |
| /* return the new audio buffer size (samples can be added or deleted |
| to get better sync if video or external master clock) */ |
| static int synchronize_audio(VideoState *is, short *samples, |
| int samples_size1, double pts) |
| { |
| int n, samples_size; |
| double ref_clock; |
| |
| n = 2 * is->audio_st->codec->channels; |
| samples_size = samples_size1; |
| |
| /* if not master, then we try to remove or add samples to correct the clock */ |
| if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) || |
| is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) { |
| double diff, avg_diff; |
| int wanted_size, min_size, max_size, nb_samples; |
| |
| ref_clock = get_master_clock(is); |
| diff = get_audio_clock(is) - ref_clock; |
| |
| if (diff < AV_NOSYNC_THRESHOLD) { |
| is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum; |
| if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) { |
| /* not enough measures to have a correct estimate */ |
| is->audio_diff_avg_count++; |
| } else { |
| /* estimate the A-V difference */ |
| avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef); |
| |
| if (fabs(avg_diff) >= is->audio_diff_threshold) { |
| wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n); |
| nb_samples = samples_size / n; |
| |
| min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n; |
| max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n; |
| if (wanted_size < min_size) |
| wanted_size = min_size; |
| else if (wanted_size > max_size) |
| wanted_size = max_size; |
| |
| /* add or remove samples to correction the synchro */ |
| if (wanted_size < samples_size) { |
| /* remove samples */ |
| samples_size = wanted_size; |
| } else if (wanted_size > samples_size) { |
| uint8_t *samples_end, *q; |
| int nb; |
| |
| /* add samples */ |
| nb = (samples_size - wanted_size); |
| samples_end = (uint8_t *)samples + samples_size - n; |
| q = samples_end + n; |
| while (nb > 0) { |
| memcpy(q, samples_end, n); |
| q += n; |
| nb -= n; |
| } |
| samples_size = wanted_size; |
| } |
| } |
| #if 0 |
| printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n", |
| diff, avg_diff, samples_size - samples_size1, |
| is->audio_clock, is->video_clock, is->audio_diff_threshold); |
| #endif |
| } |
| } else { |
| /* too big difference : may be initial PTS errors, so |
| reset A-V filter */ |
| is->audio_diff_avg_count = 0; |
| is->audio_diff_cum = 0; |
| } |
| } |
| |
| return samples_size; |
| } |
| |
| /* decode one audio frame and returns its uncompressed size */ |
| static int audio_decode_frame(VideoState *is, double *pts_ptr) |
| { |
| AVPacket *pkt = &is->audio_pkt; |
| AVCodecContext *dec= is->audio_st->codec; |
| int n, len1, data_size; |
| double pts; |
| |
| for(;;) { |
| /* NOTE: the audio packet can contain several frames */ |
| while (is->audio_pkt_size > 0) { |
| data_size = sizeof(is->audio_buf1); |
| len1 = avcodec_decode_audio2(dec, |
| (int16_t *)is->audio_buf1, &data_size, |
| is->audio_pkt_data, is->audio_pkt_size); |
| if (len1 < 0) { |
| /* if error, we skip the frame */ |
| is->audio_pkt_size = 0; |
| break; |
| } |
| |
| is->audio_pkt_data += len1; |
| is->audio_pkt_size -= len1; |
| if (data_size <= 0) |
| continue; |
| |
| if (dec->sample_fmt != is->audio_src_fmt) { |
| if (is->reformat_ctx) |
| av_audio_convert_free(is->reformat_ctx); |
| is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1, |
| dec->sample_fmt, 1, NULL, 0); |
| if (!is->reformat_ctx) { |
| fprintf(stderr, "Cannot convert %s sample format to %s sample format\n", |
| avcodec_get_sample_fmt_name(dec->sample_fmt), |
| avcodec_get_sample_fmt_name(SAMPLE_FMT_S16)); |
| break; |
| } |
| is->audio_src_fmt= dec->sample_fmt; |
| } |
| |
| if (is->reformat_ctx) { |
| const void *ibuf[6]= {is->audio_buf1}; |
| void *obuf[6]= {is->audio_buf2}; |
| int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8}; |
| int ostride[6]= {2}; |
| int len= data_size/istride[0]; |
| if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) { |
| printf("av_audio_convert() failed\n"); |
| break; |
| } |
| is->audio_buf= is->audio_buf2; |
| /* FIXME: existing code assume that data_size equals framesize*channels*2 |
| remove this legacy cruft */ |
| data_size= len*2; |
| }else{ |
| is->audio_buf= is->audio_buf1; |
| } |
| |
| /* if no pts, then compute it */ |
| pts = is->audio_clock; |
| *pts_ptr = pts; |
| n = 2 * dec->channels; |
| is->audio_clock += (double)data_size / |
| (double)(n * dec->sample_rate); |
| #if defined(DEBUG_SYNC) |
| { |
| static double last_clock; |
| printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n", |
| is->audio_clock - last_clock, |
| is->audio_clock, pts); |
| last_clock = is->audio_clock; |
| } |
| #endif |
| return data_size; |
| } |
| |
| /* free the current packet */ |
| if (pkt->data) |
| av_free_packet(pkt); |
| |
| if (is->paused || is->audioq.abort_request) { |
| return -1; |
| } |
| |
| /* read next packet */ |
| if (packet_queue_get(&is->audioq, pkt, 1) < 0) |
| return -1; |
| if(pkt->data == flush_pkt.data){ |
| avcodec_flush_buffers(dec); |
| continue; |
| } |
| |
| is->audio_pkt_data = pkt->data; |
| is->audio_pkt_size = pkt->size; |
| |
| /* if update the audio clock with the pts */ |
| if (pkt->pts != AV_NOPTS_VALUE) { |
| is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts; |
| } |
| } |
| } |
| |
| /* get the current audio output buffer size, in samples. With SDL, we |
| cannot have a precise information */ |
| static int audio_write_get_buf_size(VideoState *is) |
| { |
| return is->audio_buf_size - is->audio_buf_index; |
| } |
| |
| |
| /* prepare a new audio buffer */ |
| static void sdl_audio_callback(void *opaque, Uint8 *stream, int len) |
| { |
| VideoState *is = opaque; |
| int audio_size, len1; |
| double pts; |
| |
| audio_callback_time = av_gettime(); |
| |
| while (len > 0) { |
| if (is->audio_buf_index >= is->audio_buf_size) { |
| audio_size = audio_decode_frame(is, &pts); |
| if (audio_size < 0) { |
| /* if error, just output silence */ |
| is->audio_buf = is->audio_buf1; |
| is->audio_buf_size = 1024; |
| memset(is->audio_buf, 0, is->audio_buf_size); |
| } else { |
| if (is->show_audio) |
| update_sample_display(is, (int16_t *)is->audio_buf, audio_size); |
| audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size, |
| pts); |
| is->audio_buf_size = audio_size; |
| } |
| is->audio_buf_index = 0; |
| } |
| len1 = is->audio_buf_size - is->audio_buf_index; |
| if (len1 > len) |
| len1 = len; |
| memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1); |
| len -= len1; |
| stream += len1; |
| is->audio_buf_index += len1; |
| } |
| } |
| |
| /* open a given stream. Return 0 if OK */ |
| static int stream_component_open(VideoState *is, int stream_index) |
| { |
| AVFormatContext *ic = is->ic; |
| AVCodecContext *enc; |
| AVCodec *codec; |
| SDL_AudioSpec wanted_spec, spec; |
| |
| if (stream_index < 0 || stream_index >= ic->nb_streams) |
| return -1; |
| enc = ic->streams[stream_index]->codec; |
| |
| /* prepare audio output */ |
| if (enc->codec_type == CODEC_TYPE_AUDIO) { |
| if (enc->channels > 0) { |
| enc->request_channels = FFMIN(2, enc->channels); |
| } else { |
| enc->request_channels = 2; |
| } |
| } |
| |
| codec = avcodec_find_decoder(enc->codec_id); |
| enc->debug_mv = debug_mv; |
| enc->debug = debug; |
| enc->workaround_bugs = workaround_bugs; |
| enc->lowres = lowres; |
| if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE; |
| enc->idct_algo= idct; |
| if(fast) enc->flags2 |= CODEC_FLAG2_FAST; |
| enc->skip_frame= skip_frame; |
| enc->skip_idct= skip_idct; |
| enc->skip_loop_filter= skip_loop_filter; |
| enc->error_recognition= error_recognition; |
| enc->error_concealment= error_concealment; |
| |
| set_context_opts(enc, avctx_opts[enc->codec_type], 0); |
| |
| if (!codec || |
| avcodec_open(enc, codec) < 0) |
| return -1; |
| |
| /* prepare audio output */ |
| if (enc->codec_type == CODEC_TYPE_AUDIO) { |
| wanted_spec.freq = enc->sample_rate; |
| wanted_spec.format = AUDIO_S16SYS; |
| wanted_spec.channels = enc->channels; |
| wanted_spec.silence = 0; |
| wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE; |
| wanted_spec.callback = sdl_audio_callback; |
| wanted_spec.userdata = is; |
| if (SDL_OpenAudio(&wanted_spec, &spec) < 0) { |
| fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError()); |
| return -1; |
| } |
| is->audio_hw_buf_size = spec.size; |
| is->audio_src_fmt= SAMPLE_FMT_S16; |
| } |
| |
| if(thread_count>1) |
| avcodec_thread_init(enc, thread_count); |
| enc->thread_count= thread_count; |
| ic->streams[stream_index]->discard = AVDISCARD_DEFAULT; |
| switch(enc->codec_type) { |
| case CODEC_TYPE_AUDIO: |
| is->audio_stream = stream_index; |
| is->audio_st = ic->streams[stream_index]; |
| is->audio_buf_size = 0; |
| is->audio_buf_index = 0; |
| |
| /* init averaging filter */ |
| is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB); |
| is->audio_diff_avg_count = 0; |
| /* since we do not have a precise anough audio fifo fullness, |
| we correct audio sync only if larger than this threshold */ |
| is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate; |
| |
| memset(&is->audio_pkt, 0, sizeof(is->audio_pkt)); |
| packet_queue_init(&is->audioq); |
| SDL_PauseAudio(0); |
| break; |
| case CODEC_TYPE_VIDEO: |
| is->video_stream = stream_index; |
| is->video_st = ic->streams[stream_index]; |
| |
| is->frame_last_delay = 40e-3; |
| is->frame_timer = (double)av_gettime() / 1000000.0; |
| is->video_current_pts_time = av_gettime(); |
| |
| packet_queue_init(&is->videoq); |
| is->video_tid = SDL_CreateThread(video_thread, is); |
| break; |
| case CODEC_TYPE_SUBTITLE: |
| is->subtitle_stream = stream_index; |
| is->subtitle_st = ic->streams[stream_index]; |
| packet_queue_init(&is->subtitleq); |
| |
| is->subtitle_tid = SDL_CreateThread(subtitle_thread, is); |
| break; |
| default: |
| break; |
| } |
| return 0; |
| } |
| |
| static void stream_component_close(VideoState *is, int stream_index) |
| { |
| AVFormatContext *ic = is->ic; |
| AVCodecContext *enc; |
| |
| if (stream_index < 0 || stream_index >= ic->nb_streams) |
| return; |
| enc = ic->streams[stream_index]->codec; |
| |
| switch(enc->codec_type) { |
| case CODEC_TYPE_AUDIO: |
| packet_queue_abort(&is->audioq); |
| |
| SDL_CloseAudio(); |
| |
| packet_queue_end(&is->audioq); |
| if (is->reformat_ctx) |
| av_audio_convert_free(is->reformat_ctx); |
| break; |
| case CODEC_TYPE_VIDEO: |
| packet_queue_abort(&is->videoq); |
| |
| /* note: we also signal this mutex to make sure we deblock the |
| video thread in all cases */ |
| SDL_LockMutex(is->pictq_mutex); |
| SDL_CondSignal(is->pictq_cond); |
| SDL_UnlockMutex(is->pictq_mutex); |
| |
| SDL_WaitThread(is->video_tid, NULL); |
| |
| packet_queue_end(&is->videoq); |
| break; |
| case CODEC_TYPE_SUBTITLE: |
| packet_queue_abort(&is->subtitleq); |
| |
| /* note: we also signal this mutex to make sure we deblock the |
| video thread in all cases */ |
| SDL_LockMutex(is->subpq_mutex); |
| is->subtitle_stream_changed = 1; |
| |
| SDL_CondSignal(is->subpq_cond); |
| SDL_UnlockMutex(is->subpq_mutex); |
| |
| SDL_WaitThread(is->subtitle_tid, NULL); |
| |
| packet_queue_end(&is->subtitleq); |
| break; |
| default: |
| break; |
| } |
| |
| ic->streams[stream_index]->discard = AVDISCARD_ALL; |
| avcodec_close(enc); |
| switch(enc->codec_type) { |
| case CODEC_TYPE_AUDIO: |
| is->audio_st = NULL; |
| is->audio_stream = -1; |
| break; |
| case CODEC_TYPE_VIDEO: |
| is->video_st = NULL; |
| is->video_stream = -1; |
| break; |
| case CODEC_TYPE_SUBTITLE: |
| is->subtitle_st = NULL; |
| is->subtitle_stream = -1; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void dump_stream_info(const AVFormatContext *s) |
| { |
| AVMetadataTag *tag = NULL; |
| while ((tag=av_metadata_get(s->metadata,"",tag,AV_METADATA_IGNORE_SUFFIX))) |
| fprintf(stderr, "%s: %s\n", tag->key, tag->value); |
| } |
| |
| /* since we have only one decoding thread, we can use a global |
| variable instead of a thread local variable */ |
| static VideoState *global_video_state; |
| |
| static int decode_interrupt_cb(void) |
| { |
| return (global_video_state && global_video_state->abort_request); |
| } |
| |
| /* this thread gets the stream from the disk or the network */ |
| static int decode_thread(void *arg) |
| { |
| VideoState *is = arg; |
| AVFormatContext *ic; |
| int err, i, ret, video_index, audio_index, subtitle_index; |
| AVPacket pkt1, *pkt = &pkt1; |
| AVFormatParameters params, *ap = ¶ms; |
| |
| video_index = -1; |
| audio_index = -1; |
| subtitle_index = -1; |
| is->video_stream = -1; |
| is->audio_stream = -1; |
| is->subtitle_stream = -1; |
| |
| global_video_state = is; |
| url_set_interrupt_cb(decode_interrupt_cb); |
| |
| memset(ap, 0, sizeof(*ap)); |
| |
| ap->width = frame_width; |
| ap->height= frame_height; |
| ap->time_base= (AVRational){1, 25}; |
| ap->pix_fmt = frame_pix_fmt; |
| |
| err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap); |
| if (err < 0) { |
| print_error(is->filename, err); |
| ret = -1; |
| goto fail; |
| } |
| is->ic = ic; |
| |
| if(genpts) |
| ic->flags |= AVFMT_FLAG_GENPTS; |
| |
| err = av_find_stream_info(ic); |
| if (err < 0) { |
| fprintf(stderr, "%s: could not find codec parameters\n", is->filename); |
| ret = -1; |
| goto fail; |
| } |
| if(ic->pb) |
| ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end |
| |
| /* if seeking requested, we execute it */ |
| if (start_time != AV_NOPTS_VALUE) { |
| int64_t timestamp; |
| |
| timestamp = start_time; |
| /* add the stream start time */ |
| if (ic->start_time != AV_NOPTS_VALUE) |
| timestamp += ic->start_time; |
| ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD); |
| if (ret < 0) { |
| fprintf(stderr, "%s: could not seek to position %0.3f\n", |
| is->filename, (double)timestamp / AV_TIME_BASE); |
| } |
| } |
| |
| for(i = 0; i < ic->nb_streams; i++) { |
| AVCodecContext *enc = ic->streams[i]->codec; |
| ic->streams[i]->discard = AVDISCARD_ALL; |
| switch(enc->codec_type) { |
| case CODEC_TYPE_AUDIO: |
| if (wanted_audio_stream-- >= 0 && !audio_disable) |
| audio_index = i; |
| break; |
| case CODEC_TYPE_VIDEO: |
| if (wanted_video_stream-- >= 0 && !video_disable) |
| video_index = i; |
| break; |
| case CODEC_TYPE_SUBTITLE: |
| if (wanted_subtitle_stream-- >= 0 && !video_disable) |
| subtitle_index = i; |
| break; |
| default: |
| break; |
| } |
| } |
| if (show_status) { |
| dump_format(ic, 0, is->filename, 0); |
| dump_stream_info(ic); |
| } |
| |
| /* open the streams */ |
| if (audio_index >= 0) { |
| stream_component_open(is, audio_index); |
| } |
| |
| if (video_index >= 0) { |
| stream_component_open(is, video_index); |
| } else { |
| if (!display_disable) |
| is->show_audio = 1; |
| } |
| |
| if (subtitle_index >= 0) { |
| stream_component_open(is, subtitle_index); |
| } |
| |
| if (is->video_stream < 0 && is->audio_stream < 0) { |
| fprintf(stderr, "%s: could not open codecs\n", is->filename); |
| ret = -1; |
| goto fail; |
| } |
| |
| for(;;) { |
| if (is->abort_request) |
| break; |
| if (is->paused != is->last_paused) { |
| is->last_paused = is->paused; |
| if (is->paused) |
| av_read_pause(ic); |
| else |
| av_read_play(ic); |
| } |
| #if CONFIG_RTSP_DEMUXER |
| if (is->paused && !strcmp(ic->iformat->name, "rtsp")) { |
| /* wait 10 ms to avoid trying to get another packet */ |
| /* XXX: horrible */ |
| SDL_Delay(10); |
| continue; |
| } |
| #endif |
| if (is->seek_req) { |
| int stream_index= -1; |
| int64_t seek_target= is->seek_pos; |
| |
| if (is-> video_stream >= 0) stream_index= is-> video_stream; |
| else if(is-> audio_stream >= 0) stream_index= is-> audio_stream; |
| else if(is->subtitle_stream >= 0) stream_index= is->subtitle_stream; |
| |
| if(stream_index>=0){ |
| seek_target= av_rescale_q(seek_target, AV_TIME_BASE_Q, ic->streams[stream_index]->time_base); |
| } |
| |
| ret = av_seek_frame(is->ic, stream_index, seek_target, is->seek_flags); |
| if (ret < 0) { |
| fprintf(stderr, "%s: error while seeking\n", is->ic->filename); |
| }else{ |
| if (is->audio_stream >= 0) { |
| packet_queue_flush(&is->audioq); |
| packet_queue_put(&is->audioq, &flush_pkt); |
| } |
| if (is->subtitle_stream >= 0) { |
| packet_queue_flush(&is->subtitleq); |
| packet_queue_put(&is->subtitleq, &flush_pkt); |
| } |
| if (is->video_stream >= 0) { |
| packet_queue_flush(&is->videoq); |
| packet_queue_put(&is->videoq, &flush_pkt); |
| } |
| } |
| is->seek_req = 0; |
| } |
| |
| /* if the queue are full, no need to read more */ |
| if (is->audioq.size > MAX_AUDIOQ_SIZE || |
| is->videoq.size > MAX_VIDEOQ_SIZE || |
| is->subtitleq.size > MAX_SUBTITLEQ_SIZE) { |
| /* wait 10 ms */ |
| SDL_Delay(10); |
| continue; |
| } |
| if(url_feof(ic->pb)) { |
| av_init_packet(pkt); |
| pkt->data=NULL; |
| pkt->size=0; |
| pkt->stream_index= is->video_stream; |
| packet_queue_put(&is->videoq, pkt); |
| continue; |
| } |
| ret = av_read_frame(ic, pkt); |
| if (ret < 0) { |
| if (ret != AVERROR_EOF && url_ferror(ic->pb) == 0) { |
| SDL_Delay(100); /* wait for user event */ |
| continue; |
| } else |
| break; |
| } |
| if (pkt->stream_index == is->audio_stream) { |
| packet_queue_put(&is->audioq, pkt); |
| } else if (pkt->stream_index == is->video_stream) { |
| packet_queue_put(&is->videoq, pkt); |
| } else if (pkt->stream_index == is->subtitle_stream) { |
| packet_queue_put(&is->subtitleq, pkt); |
| } else { |
| av_free_packet(pkt); |
| } |
| } |
| /* wait until the end */ |
| while (!is->abort_request) { |
| SDL_Delay(100); |
| } |
| |
| ret = 0; |
| fail: |
| /* disable interrupting */ |
| global_video_state = NULL; |
| |
| /* close each stream */ |
| if (is->audio_stream >= 0) |
| stream_component_close(is, is->audio_stream); |
| if (is->video_stream >= 0) |
| stream_component_close(is, is->video_stream); |
| if (is->subtitle_stream >= 0) |
| stream_component_close(is, is->subtitle_stream); |
| if (is->ic) { |
| av_close_input_file(is->ic); |
| is->ic = NULL; /* safety */ |
| } |
| url_set_interrupt_cb(NULL); |
| |
| if (ret != 0) { |
| SDL_Event event; |
| |
| event.type = FF_QUIT_EVENT; |
| event.user.data1 = is; |
| SDL_PushEvent(&event); |
| } |
| return 0; |
| } |
| |
| static VideoState *stream_open(const char *filename, AVInputFormat *iformat) |
| { |
| VideoState *is; |
| |
| is = av_mallocz(sizeof(VideoState)); |
| if (!is) |
| return NULL; |
| av_strlcpy(is->filename, filename, sizeof(is->filename)); |
| is->iformat = iformat; |
| is->ytop = 0; |
| is->xleft = 0; |
| |
| /* start video display */ |
| is->pictq_mutex = SDL_CreateMutex(); |
| is->pictq_cond = SDL_CreateCond(); |
| |
| is->subpq_mutex = SDL_CreateMutex(); |
| is->subpq_cond = SDL_CreateCond(); |
| |
| /* add the refresh timer to draw the picture */ |
| schedule_refresh(is, 40); |
| |
| is->av_sync_type = av_sync_type; |
| is->parse_tid = SDL_CreateThread(decode_thread, is); |
| if (!is->parse_tid) { |
| av_free(is); |
| return NULL; |
| } |
| return is; |
| } |
| |
| static void stream_close(VideoState *is) |
| { |
| VideoPicture *vp; |
| int i; |
| /* XXX: use a special url_shutdown call to abort parse cleanly */ |
| is->abort_request = 1; |
| SDL_WaitThread(is->parse_tid, NULL); |
| |
| /* free all pictures */ |
| for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) { |
| vp = &is->pictq[i]; |
| if (vp->bmp) { |
| SDL_FreeYUVOverlay(vp->bmp); |
| vp->bmp = NULL; |
| } |
| } |
| SDL_DestroyMutex(is->pictq_mutex); |
| SDL_DestroyCond(is->pictq_cond); |
| SDL_DestroyMutex(is->subpq_mutex); |
| SDL_DestroyCond(is->subpq_cond); |
| } |
| |
| static void stream_cycle_channel(VideoState *is, int codec_type) |
| { |
| AVFormatContext *ic = is->ic; |
| int start_index, stream_index; |
| AVStream *st; |
| |
| if (codec_type == CODEC_TYPE_VIDEO) |
| start_index = is->video_stream; |
| else if (codec_type == CODEC_TYPE_AUDIO) |
| start_index = is->audio_stream; |
| else |
| start_index = is->subtitle_stream; |
| if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0)) |
| return; |
| stream_index = start_index; |
| for(;;) { |
| if (++stream_index >= is->ic->nb_streams) |
| { |
| if (codec_type == CODEC_TYPE_SUBTITLE) |
| { |
| stream_index = -1; |
| goto the_end; |
| } else |
| stream_index = 0; |
| } |
| if (stream_index == start_index) |
| return; |
| st = ic->streams[stream_index]; |
| if (st->codec->codec_type == codec_type) { |
| /* check that parameters are OK */ |
| switch(codec_type) { |
| case CODEC_TYPE_AUDIO: |
| if (st->codec->sample_rate != 0 && |
| st->codec->channels != 0) |
| goto the_end; |
| break; |
| case CODEC_TYPE_VIDEO: |
| case CODEC_TYPE_SUBTITLE: |
| goto the_end; |
| default: |
| break; |
| } |
| } |
| } |
| the_end: |
| stream_component_close(is, start_index); |
| stream_component_open(is, stream_index); |
| } |
| |
| |
| static void toggle_full_screen(void) |
| { |
| is_full_screen = !is_full_screen; |
| if (!fs_screen_width) { |
| /* use default SDL method */ |
| // SDL_WM_ToggleFullScreen(screen); |
| } |
| video_open(cur_stream); |
| } |
| |
| static void toggle_pause(void) |
| { |
| if (cur_stream) |
| stream_pause(cur_stream); |
| step = 0; |
| } |
| |
| static void step_to_next_frame(void) |
| { |
| if (cur_stream) { |
| /* if the stream is paused unpause it, then step */ |
| if (cur_stream->paused) |
| stream_pause(cur_stream); |
| } |
| step = 1; |
| } |
| |
| static void do_exit(void) |
| { |
| if (cur_stream) { |
| stream_close(cur_stream); |
| cur_stream = NULL; |
| } |
| if (show_status) |
| printf("\n"); |
| SDL_Quit(); |
| exit(0); |
| } |
| |
| static void toggle_audio_display(void) |
| { |
| if (cur_stream) { |
| cur_stream->show_audio = !cur_stream->show_audio; |
| } |
| } |
| |
| /* handle an event sent by the GUI */ |
| static void event_loop(void) |
| { |
| SDL_Event event; |
| double incr, pos, frac; |
| |
| for(;;) { |
| SDL_WaitEvent(&event); |
| switch(event.type) { |
| case SDL_KEYDOWN: |
| switch(event.key.keysym.sym) { |
| case SDLK_ESCAPE: |
| case SDLK_q: |
| do_exit(); |
| break; |
| case SDLK_f: |
| toggle_full_screen(); |
| break; |
| case SDLK_p: |
| case SDLK_SPACE: |
| toggle_pause(); |
| break; |
| case SDLK_s: //S: Step to next frame |
| step_to_next_frame(); |
| break; |
| case SDLK_a: |
| if (cur_stream) |
| stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO); |
| break; |
| case SDLK_v: |
| if (cur_stream) |
| stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO); |
| break; |
| case SDLK_t: |
| if (cur_stream) |
| stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE); |
| break; |
| case SDLK_w: |
| toggle_audio_display(); |
| break; |
| case SDLK_LEFT: |
| incr = -10.0; |
| goto do_seek; |
| case SDLK_RIGHT: |
| incr = 10.0; |
| goto do_seek; |
| case SDLK_UP: |
| incr = 60.0; |
| goto do_seek; |
| case SDLK_DOWN: |
| incr = -60.0; |
| do_seek: |
| if (cur_stream) { |
| if (seek_by_bytes) { |
| pos = url_ftell(cur_stream->ic->pb); |
| if (cur_stream->ic->bit_rate) |
| incr *= cur_stream->ic->bit_rate / 60.0; |
| else |
| incr *= 180000.0; |
| pos += incr; |
| stream_seek(cur_stream, pos, incr); |
| } else { |
| pos = get_master_clock(cur_stream); |
| pos += incr; |
| stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), incr); |
| } |
| } |
| break; |
| default: |
| break; |
| } |
| break; |
| case SDL_MOUSEBUTTONDOWN: |
| if (cur_stream) { |
| int ns, hh, mm, ss; |
| int tns, thh, tmm, tss; |
| tns = cur_stream->ic->duration/1000000LL; |
| thh = tns/3600; |
| tmm = (tns%3600)/60; |
| tss = (tns%60); |
| frac = (double)event.button.x/(double)cur_stream->width; |
| ns = frac*tns; |
| hh = ns/3600; |
| mm = (ns%3600)/60; |
| ss = (ns%60); |
| fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100, |
| hh, mm, ss, thh, tmm, tss); |
| stream_seek(cur_stream, (int64_t)(cur_stream->ic->start_time+frac*cur_stream->ic->duration), 0); |
| } |
| break; |
| case SDL_VIDEORESIZE: |
| if (cur_stream) { |
| screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0, |
| SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL); |
| screen_width = cur_stream->width = event.resize.w; |
| screen_height= cur_stream->height= event.resize.h; |
| } |
| break; |
| case SDL_QUIT: |
| case FF_QUIT_EVENT: |
| do_exit(); |
| break; |
| case FF_ALLOC_EVENT: |
| video_open(event.user.data1); |
| alloc_picture(event.user.data1); |
| break; |
| case FF_REFRESH_EVENT: |
| video_refresh_timer(event.user.data1); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| static void opt_frame_size(const char *arg) |
| { |
| if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) { |
| fprintf(stderr, "Incorrect frame size\n"); |
| exit(1); |
| } |
| if ((frame_width % 2) != 0 || (frame_height % 2) != 0) { |
| fprintf(stderr, "Frame size must be a multiple of 2\n"); |
| exit(1); |
| } |
| } |
| |
| static int opt_width(const char *opt, const char *arg) |
| { |
| screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); |
| return 0; |
| } |
| |
| static int opt_height(const char *opt, const char *arg) |
| { |
| screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); |
| return 0; |
| } |
| |
| static void opt_format(const char *arg) |
| { |
| file_iformat = av_find_input_format(arg); |
| if (!file_iformat) { |
| fprintf(stderr, "Unknown input format: %s\n", arg); |
| exit(1); |
| } |
| } |
| |
| static void opt_frame_pix_fmt(const char *arg) |
| { |
| frame_pix_fmt = avcodec_get_pix_fmt(arg); |
| } |
| |
| static int opt_sync(const char *opt, const char *arg) |
| { |
| if (!strcmp(arg, "audio")) |
| av_sync_type = AV_SYNC_AUDIO_MASTER; |
| else if (!strcmp(arg, "video")) |
| av_sync_type = AV_SYNC_VIDEO_MASTER; |
| else if (!strcmp(arg, "ext")) |
| av_sync_type = AV_SYNC_EXTERNAL_CLOCK; |
| else { |
| fprintf(stderr, "Unknown value for %s: %s\n", opt, arg); |
| exit(1); |
| } |
| return 0; |
| } |
| |
| static int opt_seek(const char *opt, const char *arg) |
| { |
| start_time = parse_time_or_die(opt, arg, 1); |
| return 0; |
| } |
| |
| static int opt_debug(const char *opt, const char *arg) |
| { |
| av_log_set_level(99); |
| debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX); |
| return 0; |
| } |
| |
| static int opt_vismv(const char *opt, const char *arg) |
| { |
| debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX); |
| return 0; |
| } |
| |
| static int opt_thread_count(const char *opt, const char *arg) |
| { |
| thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX); |
| #if !HAVE_THREADS |
| fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n"); |
| #endif |
| return 0; |
| } |
| |
| static const OptionDef options[] = { |
| { "h", OPT_EXIT, {(void*)show_help}, "show help" }, |
| { "version", OPT_EXIT, {(void*)show_version}, "show version" }, |
| { "L", OPT_EXIT, {(void*)show_license}, "show license" }, |
| { "formats", OPT_EXIT, {(void*)show_formats}, "show available formats, codecs, protocols, ..." }, |
| { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" }, |
| { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" }, |
| { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" }, |
| { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" }, |
| { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" }, |
| { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" }, |
| { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_audio_stream}, "select desired audio stream", "stream_number" }, |
| { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_video_stream}, "select desired video stream", "stream_number" }, |
| { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_subtitle_stream}, "select desired subtitle stream", "stream_number" }, |
| { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" }, |
| { "bytes", OPT_BOOL, {(void*)&seek_by_bytes}, "seek by bytes" }, |
| { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" }, |
| { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" }, |
| { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" }, |
| { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" }, |
| { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" }, |
| { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" }, |
| { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" }, |
| { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" }, |
| { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" }, |
| { "drp", OPT_BOOL |OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts", ""}, |
| { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" }, |
| { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" }, |
| { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" }, |
| { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" }, |
| { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" }, |
| { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" }, |
| { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" }, |
| { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" }, |
| { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" }, |
| { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" }, |
| { NULL, }, |
| }; |
| |
| static void show_help(void) |
| { |
| printf("usage: ffplay [options] input_file\n" |
| "Simple media player\n"); |
| printf("\n"); |
| show_help_options(options, "Main options:\n", |
| OPT_EXPERT, 0); |
| show_help_options(options, "\nAdvanced options:\n", |
| OPT_EXPERT, OPT_EXPERT); |
| printf("\nWhile playing:\n" |
| "q, ESC quit\n" |
| "f toggle full screen\n" |
| "p, SPC pause\n" |
| "a cycle audio channel\n" |
| "v cycle video channel\n" |
| "t cycle subtitle channel\n" |
| "w show audio waves\n" |
| "left/right seek backward/forward 10 seconds\n" |
| "down/up seek backward/forward 1 minute\n" |
| "mouse click seek to percentage in file corresponding to fraction of width\n" |
| ); |
| } |
| |
| static void opt_input_file(const char *filename) |
| { |
| if (!strcmp(filename, "-")) |
| filename = "pipe:"; |
| input_filename = filename; |
| } |
| |
| /* Called from the main */ |
| int main(int argc, char **argv) |
| { |
| int flags, i; |
| |
| /* register all codecs, demux and protocols */ |
| avcodec_register_all(); |
| avdevice_register_all(); |
| av_register_all(); |
| |
| for(i=0; i<CODEC_TYPE_NB; i++){ |
| avctx_opts[i]= avcodec_alloc_context2(i); |
| } |
| avformat_opts = avformat_alloc_context(); |
| sws_opts = sws_getContext(16,16,0, 16,16,0, sws_flags, NULL,NULL,NULL); |
| |
| show_banner(); |
| |
| parse_options(argc, argv, options, opt_input_file); |
| |
| if (!input_filename) { |
| fprintf(stderr, "An input file must be specified\n"); |
| exit(1); |
| } |
| |
| if (display_disable) { |
| video_disable = 1; |
| } |
| flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER; |
| #if !defined(__MINGW32__) && !defined(__APPLE__) |
| flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */ |
| #endif |
| if (SDL_Init (flags)) { |
| fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError()); |
| exit(1); |
| } |
| |
| if (!display_disable) { |
| #if HAVE_SDL_VIDEO_SIZE |
| const SDL_VideoInfo *vi = SDL_GetVideoInfo(); |
| fs_screen_width = vi->current_w; |
| fs_screen_height = vi->current_h; |
| #endif |
| } |
| |
| SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE); |
| SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE); |
| SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE); |
| SDL_EventState(SDL_USEREVENT, SDL_IGNORE); |
| |
| av_init_packet(&flush_pkt); |
| flush_pkt.data= "FLUSH"; |
| |
| cur_stream = stream_open(input_filename, file_iformat); |
| |
| event_loop(); |
| |
| /* never returns */ |
| |
| return 0; |
| } |