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gfiber / vendor / opensource / ffmpeg / 4c223fe519174f0d7086f4698e9f7b9840cf15e9 / . / ffmpeg.c
blob: 05699bc9bb8de8277c1cfae6e527bb583d5501c5 [file] [log] [blame]
/*
* FFmpeg main
* Copyright (c) 2000-2003 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
*/
/* needed for usleep() */
#define _XOPEN_SOURCE 600
#include "config.h"
#include <ctype.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
#include <errno.h>
#include <signal.h>
#include <limits.h>
#include <unistd.h>
#include "libavformat/avformat.h"
#include "libavdevice/avdevice.h"
#include "libswscale/swscale.h"
#include "libavformat/framehook.h"
#include "libavcodec/opt.h"
#include "libavcodec/audioconvert.h"
#include "libavutil/fifo.h"
#include "libavutil/avstring.h"
#include "libavformat/os_support.h"
#if HAVE_SYS_RESOURCE_H
#include <sys/types.h>
#include <sys/resource.h>
#elif HAVE_GETPROCESSTIMES
#include <windows.h>
#endif
#if HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#if HAVE_TERMIOS_H
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <termios.h>
#elif HAVE_CONIO_H
#include <conio.h>
#endif
#undef time //needed because HAVE_AV_CONFIG_H is defined on top
#include <time.h>
#include "cmdutils.h"
#undef NDEBUG
#include <assert.h>
#undef exit
const char program_name[] = "FFmpeg";
const int program_birth_year = 2000;
/* select an input stream for an output stream */
typedef struct AVStreamMap {
int file_index;
int stream_index;
int sync_file_index;
int sync_stream_index;
} AVStreamMap;
/** select an input file for an output file */
typedef struct AVMetaDataMap {
int out_file;
int in_file;
} AVMetaDataMap;
static const OptionDef options[];
#define MAX_FILES 20
static AVFormatContext *input_files[MAX_FILES];
static int64_t input_files_ts_offset[MAX_FILES];
static double input_files_ts_scale[MAX_FILES][MAX_STREAMS];
static AVCodec *input_codecs[MAX_FILES*MAX_STREAMS];
static int nb_input_files = 0;
static int nb_icodecs;
static AVFormatContext *output_files[MAX_FILES];
static AVCodec *output_codecs[MAX_FILES*MAX_STREAMS];
static int nb_output_files = 0;
static int nb_ocodecs;
static AVStreamMap stream_maps[MAX_FILES*MAX_STREAMS];
static int nb_stream_maps;
static AVMetaDataMap meta_data_maps[MAX_FILES];
static int nb_meta_data_maps;
static AVInputFormat *file_iformat;
static AVOutputFormat *file_oformat;
static int frame_width = 0;
static int frame_height = 0;
static float frame_aspect_ratio = 0;
static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
static enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
static int frame_padtop = 0;
static int frame_padbottom = 0;
static int frame_padleft = 0;
static int frame_padright = 0;
static int padcolor[3] = {16,128,128}; /* default to black */
static int frame_topBand = 0;
static int frame_bottomBand = 0;
static int frame_leftBand = 0;
static int frame_rightBand = 0;
static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
static AVRational frame_rate;
static float video_qscale = 0;
static uint16_t *intra_matrix = NULL;
static uint16_t *inter_matrix = NULL;
#if 0 //experimental, (can be removed)
static float video_rc_qsquish=1.0;
static float video_rc_qmod_amp=0;
static int video_rc_qmod_freq=0;
#endif
static const char *video_rc_override_string=NULL;
static int video_disable = 0;
static int video_discard = 0;
static char *video_codec_name = NULL;
static int video_codec_tag = 0;
static int same_quality = 0;
static int do_deinterlace = 0;
static int top_field_first = -1;
static int me_threshold = 0;
static int intra_dc_precision = 8;
static int loop_input = 0;
static int loop_output = AVFMT_NOOUTPUTLOOP;
static int qp_hist = 0;
static int intra_only = 0;
static int audio_sample_rate = 44100;
static int64_t channel_layout = 0;
#define QSCALE_NONE -99999
static float audio_qscale = QSCALE_NONE;
static int audio_disable = 0;
static int audio_channels = 1;
static char *audio_codec_name = NULL;
static int audio_codec_tag = 0;
static char *audio_language = NULL;
static int subtitle_disable = 0;
static char *subtitle_codec_name = NULL;
static char *subtitle_language = NULL;
static float mux_preload= 0.5;
static float mux_max_delay= 0.7;
static int64_t recording_time = INT64_MAX;
static int64_t start_time = 0;
static int64_t rec_timestamp = 0;
static int64_t input_ts_offset = 0;
static int file_overwrite = 0;
static int metadata_count;
static AVMetadataTag *metadata;
static int do_benchmark = 0;
static int do_hex_dump = 0;
static int do_pkt_dump = 0;
static int do_psnr = 0;
static int do_pass = 0;
static char *pass_logfilename_prefix = NULL;
static int audio_stream_copy = 0;
static int video_stream_copy = 0;
static int subtitle_stream_copy = 0;
static int video_sync_method= -1;
static int audio_sync_method= 0;
static float audio_drift_threshold= 0.1;
static int copy_ts= 0;
static int opt_shortest = 0;
static int video_global_header = 0;
static char *vstats_filename;
static FILE *vstats_file;
static int opt_programid = 0;
static int copy_initial_nonkeyframes = 0;
static int rate_emu = 0;
static int video_channel = 0;
static char *video_standard;
static int audio_volume = 256;
static int exit_on_error = 0;
static int using_stdin = 0;
static int using_vhook = 0;
static int verbose = 1;
static int thread_count= 1;
static int q_pressed = 0;
static int64_t video_size = 0;
static int64_t audio_size = 0;
static int64_t extra_size = 0;
static int nb_frames_dup = 0;
static int nb_frames_drop = 0;
static int input_sync;
static uint64_t limit_filesize = 0;
static int force_fps = 0;
static int pgmyuv_compatibility_hack=0;
static float dts_delta_threshold = 10;
static unsigned int sws_flags = SWS_BICUBIC;
static int64_t timer_start;
static AVBitStreamFilterContext *video_bitstream_filters=NULL;
static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
#define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
struct AVInputStream;
typedef struct AVOutputStream {
int file_index; /* file index */
int index; /* stream index in the output file */
int source_index; /* AVInputStream index */
AVStream *st; /* stream in the output file */
int encoding_needed; /* true if encoding needed for this stream */
int frame_number;
/* input pts and corresponding output pts
for A/V sync */
//double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
struct AVInputStream *sync_ist; /* input stream to sync against */
int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
/* video only */
int video_resample;
AVFrame pict_tmp; /* temporary image for resampling */
struct SwsContext *img_resample_ctx; /* for image resampling */
int resample_height;
int video_crop;
int topBand; /* cropping area sizes */
int leftBand;
int video_pad;
int padtop; /* padding area sizes */
int padbottom;
int padleft;
int padright;
/* audio only */
int audio_resample;
ReSampleContext *resample; /* for audio resampling */
int reformat_pair;
AVAudioConvert *reformat_ctx;
AVFifoBuffer fifo; /* for compression: one audio fifo per codec */
FILE *logfile;
} AVOutputStream;
typedef struct AVInputStream {
int file_index;
int index;
AVStream *st;
int discard; /* true if stream data should be discarded */
int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
int64_t sample_index; /* current sample */
int64_t start; /* time when read started */
int64_t next_pts; /* synthetic pts for cases where pkt.pts
is not defined */
int64_t pts; /* current pts */
int is_start; /* is 1 at the start and after a discontinuity */
} AVInputStream;
typedef struct AVInputFile {
int eof_reached; /* true if eof reached */
int ist_index; /* index of first stream in ist_table */
int buffer_size; /* current total buffer size */
int nb_streams; /* nb streams we are aware of */
} AVInputFile;
#if HAVE_TERMIOS_H
/* init terminal so that we can grab keys */
static struct termios oldtty;
#endif
static void term_exit(void)
{
#if HAVE_TERMIOS_H
tcsetattr (0, TCSANOW, &oldtty);
#endif
}
static volatile sig_atomic_t received_sigterm = 0;
static void
sigterm_handler(int sig)
{
received_sigterm = sig;
term_exit();
}
static void term_init(void)
{
#if HAVE_TERMIOS_H
struct termios tty;
tcgetattr (0, &tty);
oldtty = tty;
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
|INLCR|IGNCR|ICRNL|IXON);
tty.c_oflag |= OPOST;
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
tty.c_cflag &= ~(CSIZE|PARENB);
tty.c_cflag |= CS8;
tty.c_cc[VMIN] = 1;
tty.c_cc[VTIME] = 0;
tcsetattr (0, TCSANOW, &tty);
signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
#endif
signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
/*
register a function to be called at normal program termination
*/
atexit(term_exit);
#if CONFIG_BEOS_NETSERVER
fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
#endif
}
/* read a key without blocking */
static int read_key(void)
{
#if HAVE_TERMIOS_H
int n = 1;
unsigned char ch;
#if !CONFIG_BEOS_NETSERVER
struct timeval tv;
fd_set rfds;
FD_ZERO(&rfds);
FD_SET(0, &rfds);
tv.tv_sec = 0;
tv.tv_usec = 0;
n = select(1, &rfds, NULL, NULL, &tv);
#endif
if (n > 0) {
n = read(0, &ch, 1);
if (n == 1)
return ch;
return n;
}
#elif HAVE_CONIO_H
if(kbhit())
return(getch());
#endif
return -1;
}
static int decode_interrupt_cb(void)
{
return q_pressed || (q_pressed = read_key() == 'q');
}
static int av_exit(int ret)
{
int i;
/* close files */
for(i=0;i<nb_output_files;i++) {
/* maybe av_close_output_file ??? */
AVFormatContext *s = output_files[i];
int j;
if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
url_fclose(s->pb);
for(j=0;j<s->nb_streams;j++) {
av_metadata_free(&s->streams[j]->metadata);
av_free(s->streams[j]->codec);
av_free(s->streams[j]);
}
for(j=0;j<s->nb_programs;j++) {
av_metadata_free(&s->programs[j]->metadata);
}
for(j=0;j<s->nb_chapters;j++) {
av_metadata_free(&s->chapters[j]->metadata);
}
av_metadata_free(&s->metadata);
av_free(s);
}
for(i=0;i<nb_input_files;i++)
av_close_input_file(input_files[i]);
av_free(intra_matrix);
av_free(inter_matrix);
if (vstats_file)
fclose(vstats_file);
av_free(vstats_filename);
av_free(opt_names);
av_free(video_codec_name);
av_free(audio_codec_name);
av_free(subtitle_codec_name);
av_free(video_standard);
#if CONFIG_POWERPC_PERF
void powerpc_display_perf_report(void);
powerpc_display_perf_report();
#endif /* CONFIG_POWERPC_PERF */
if (received_sigterm) {
fprintf(stderr,
"Received signal %d: terminating.\n",
(int) received_sigterm);
exit (255);
}
exit(ret); /* not all OS-es handle main() return value */
return ret;
}
static int read_ffserver_streams(AVFormatContext *s, const char *filename)
{
int i, err;
AVFormatContext *ic;
int nopts = 0;
err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
if (err < 0)
return err;
/* copy stream format */
s->nb_streams = ic->nb_streams;
for(i=0;i<ic->nb_streams;i++) {
AVStream *st;
// FIXME: a more elegant solution is needed
st = av_mallocz(sizeof(AVStream));
memcpy(st, ic->streams[i], sizeof(AVStream));
st->codec = avcodec_alloc_context();
memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
s->streams[i] = st;
if (st->codec->codec_type == CODEC_TYPE_AUDIO && audio_stream_copy)
st->stream_copy = 1;
else if (st->codec->codec_type == CODEC_TYPE_VIDEO && video_stream_copy)
st->stream_copy = 1;
if(!st->codec->thread_count)
st->codec->thread_count = 1;
if(st->codec->thread_count>1)
avcodec_thread_init(st->codec, st->codec->thread_count);
if(st->codec->flags & CODEC_FLAG_BITEXACT)
nopts = 1;
}
if (!nopts)
s->timestamp = av_gettime();
av_close_input_file(ic);
return 0;
}
static double
get_sync_ipts(const AVOutputStream *ost)
{
const AVInputStream *ist = ost->sync_ist;
return (double)(ist->pts - start_time)/AV_TIME_BASE;
}
static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
int ret;
while(bsfc){
AVPacket new_pkt= *pkt;
int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
&new_pkt.data, &new_pkt.size,
pkt->data, pkt->size,
pkt->flags & PKT_FLAG_KEY);
if(a>0){
av_free_packet(pkt);
new_pkt.destruct= av_destruct_packet;
} else if(a<0){
fprintf(stderr, "%s failed for stream %d, codec %s",
bsfc->filter->name, pkt->stream_index,
avctx->codec ? avctx->codec->name : "copy");
print_error("", a);
if (exit_on_error)
av_exit(1);
}
*pkt= new_pkt;
bsfc= bsfc->next;
}
ret= av_interleaved_write_frame(s, pkt);
if(ret < 0){
print_error("av_interleaved_write_frame()", ret);
av_exit(1);
}
}
#define MAX_AUDIO_PACKET_SIZE (128 * 1024)
static void do_audio_out(AVFormatContext *s,
AVOutputStream *ost,
AVInputStream *ist,
unsigned char *buf, int size)
{
uint8_t *buftmp;
static uint8_t *audio_buf = NULL;
static uint8_t *audio_out = NULL;
static uint8_t *audio_out2 = NULL;
const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
int size_out, frame_bytes, ret;
AVCodecContext *enc= ost->st->codec;
AVCodecContext *dec= ist->st->codec;
int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
/* SC: dynamic allocation of buffers */
if (!audio_buf)
audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
if (!audio_out)
audio_out = av_malloc(audio_out_size);
if (!audio_buf || !audio_out)
return; /* Should signal an error ! */
if (enc->channels != dec->channels)
ost->audio_resample = 1;
if (ost->audio_resample && !ost->resample) {
if (dec->sample_fmt != SAMPLE_FMT_S16)
fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
ost->resample = av_audio_resample_init(enc->channels, dec->channels,
enc->sample_rate, dec->sample_rate,
enc->sample_fmt, dec->sample_fmt,
16, 10, 0, 0.8);
if (!ost->resample) {
fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
dec->channels, dec->sample_rate,
enc->channels, enc->sample_rate);
av_exit(1);
}
}
#define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
if (!audio_out2)
audio_out2 = av_malloc(audio_out_size);
if (!audio_out2)
av_exit(1);
if (ost->reformat_ctx)
av_audio_convert_free(ost->reformat_ctx);
ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
dec->sample_fmt, 1, NULL, 0);
if (!ost->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(enc->sample_fmt));
av_exit(1);
}
ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
}
if(audio_sync_method){
double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
- av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2);
double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
//FIXME resample delay
if(fabs(delta) > 50){
if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
if(byte_delta < 0){
byte_delta= FFMAX(byte_delta, -size);
size += byte_delta;
buf -= byte_delta;
if(verbose > 2)
fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
if(!size)
return;
ist->is_start=0;
}else{
static uint8_t *input_tmp= NULL;
input_tmp= av_realloc(input_tmp, byte_delta + size);
if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
ist->is_start=0;
else
byte_delta= MAX_AUDIO_PACKET_SIZE - size;
memset(input_tmp, 0, byte_delta);
memcpy(input_tmp + byte_delta, buf, size);
buf= input_tmp;
size += byte_delta;
if(verbose > 2)
fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
}
}else if(audio_sync_method>1){
int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
assert(ost->audio_resample);
if(verbose > 2)
fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
// fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2));
av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
}
}
}else
ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
- av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
if (ost->audio_resample) {
buftmp = audio_buf;
size_out = audio_resample(ost->resample,
(short *)buftmp, (short *)buf,
size / (ist->st->codec->channels * isize));
size_out = size_out * enc->channels * osize;
} else {
buftmp = buf;
size_out = size;
}
if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
const void *ibuf[6]= {buftmp};
void *obuf[6]= {audio_out2};
int istride[6]= {isize};
int ostride[6]= {osize};
int len= size_out/istride[0];
if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
printf("av_audio_convert() failed\n");
if (exit_on_error)
av_exit(1);
return;
}
buftmp = audio_out2;
size_out = len*osize;
}
/* now encode as many frames as possible */
if (enc->frame_size > 1) {
/* output resampled raw samples */
if (av_fifo_realloc2(&ost->fifo, av_fifo_size(&ost->fifo) + size_out) < 0) {
fprintf(stderr, "av_fifo_realloc2() failed\n");
av_exit(1);
}
av_fifo_generic_write(&ost->fifo, buftmp, size_out, NULL);
frame_bytes = enc->frame_size * osize * enc->channels;
while (av_fifo_size(&ost->fifo) >= frame_bytes) {
AVPacket pkt;
av_init_packet(&pkt);
av_fifo_read(&ost->fifo, audio_buf, frame_bytes);
//FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
(short *)audio_buf);
if (ret < 0) {
fprintf(stderr, "Audio encoding failed\n");
av_exit(1);
}
audio_size += ret;
pkt.stream_index= ost->index;
pkt.data= audio_out;
pkt.size= ret;
if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
pkt.flags |= PKT_FLAG_KEY;
write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
ost->sync_opts += enc->frame_size;
}
} else {
AVPacket pkt;
int coded_bps = av_get_bits_per_sample(enc->codec->id)/8;
av_init_packet(&pkt);
ost->sync_opts += size_out / (osize * enc->channels);
/* output a pcm frame */
/* determine the size of the coded buffer */
size_out /= osize;
if (coded_bps)
size_out *= coded_bps;
//FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
ret = avcodec_encode_audio(enc, audio_out, size_out,
(short *)buftmp);
if (ret < 0) {
fprintf(stderr, "Audio encoding failed\n");
av_exit(1);
}
audio_size += ret;
pkt.stream_index= ost->index;
pkt.data= audio_out;
pkt.size= ret;
if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
pkt.flags |= PKT_FLAG_KEY;
write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
}
}
static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
{
AVCodecContext *dec;
AVPicture *picture2;
AVPicture picture_tmp;
uint8_t *buf = 0;
dec = ist->st->codec;
/* deinterlace : must be done before any resize */
if (do_deinterlace || using_vhook) {
int size;
/* create temporary picture */
size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
buf = av_malloc(size);
if (!buf)
return;
picture2 = &picture_tmp;
avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
if (do_deinterlace){
if(avpicture_deinterlace(picture2, picture,
dec->pix_fmt, dec->width, dec->height) < 0) {
/* if error, do not deinterlace */
fprintf(stderr, "Deinterlacing failed\n");
av_free(buf);
buf = NULL;
picture2 = picture;
}
} else {
av_picture_copy(picture2, picture, dec->pix_fmt, dec->width, dec->height);
}
} else {
picture2 = picture;
}
if (CONFIG_VHOOK)
frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height,
1000000 * ist->pts / AV_TIME_BASE);
if (picture != picture2)
*picture = *picture2;
*bufp = buf;
}
/* we begin to correct av delay at this threshold */
#define AV_DELAY_MAX 0.100
static void do_subtitle_out(AVFormatContext *s,
AVOutputStream *ost,
AVInputStream *ist,
AVSubtitle *sub,
int64_t pts)
{
static uint8_t *subtitle_out = NULL;
int subtitle_out_max_size = 65536;
int subtitle_out_size, nb, i;
AVCodecContext *enc;
AVPacket pkt;
if (pts == AV_NOPTS_VALUE) {
fprintf(stderr, "Subtitle packets must have a pts\n");
if (exit_on_error)
av_exit(1);
return;
}
enc = ost->st->codec;
if (!subtitle_out) {
subtitle_out = av_malloc(subtitle_out_max_size);
}
/* Note: DVB subtitle need one packet to draw them and one other
packet to clear them */
/* XXX: signal it in the codec context ? */
if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
nb = 2;
else
nb = 1;
for(i = 0; i < nb; i++) {
subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
subtitle_out_max_size, sub);
av_init_packet(&pkt);
pkt.stream_index = ost->index;
pkt.data = subtitle_out;
pkt.size = subtitle_out_size;
pkt.pts = av_rescale_q(pts, ist->st->time_base, ost->st->time_base);
if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
/* XXX: the pts correction is handled here. Maybe handling
it in the codec would be better */
if (i == 0)
pkt.pts += 90 * sub->start_display_time;
else
pkt.pts += 90 * sub->end_display_time;
}
write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
}
}
static int bit_buffer_size= 1024*256;
static uint8_t *bit_buffer= NULL;
static void do_video_out(AVFormatContext *s,
AVOutputStream *ost,
AVInputStream *ist,
AVFrame *in_picture,
int *frame_size)
{
int nb_frames, i, ret;
AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
AVFrame picture_crop_temp, picture_pad_temp;
AVCodecContext *enc, *dec;
avcodec_get_frame_defaults(&picture_crop_temp);
avcodec_get_frame_defaults(&picture_pad_temp);
enc = ost->st->codec;
dec = ist->st->codec;
/* by default, we output a single frame */
nb_frames = 1;
*frame_size = 0;
if(video_sync_method>0 || (video_sync_method && av_q2d(enc->time_base) > 0.001)){
double vdelta;
vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
//FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
if (vdelta < -1.1)
nb_frames = 0;
else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
if(vdelta<=-0.6){
nb_frames=0;
}else if(vdelta>0.6)
ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
}else if (vdelta > 1.1)
nb_frames = lrintf(vdelta);
//fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
if (nb_frames == 0){
++nb_frames_drop;
if (verbose>2)
fprintf(stderr, "*** drop!\n");
}else if (nb_frames > 1) {
nb_frames_dup += nb_frames;
if (verbose>2)
fprintf(stderr, "*** %d dup!\n", nb_frames-1);
}
}else
ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
if (nb_frames <= 0)
return;
if (ost->video_crop) {
if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
fprintf(stderr, "error cropping picture\n");
if (exit_on_error)
av_exit(1);
return;
}
formatted_picture = &picture_crop_temp;
} else {
formatted_picture = in_picture;
}
final_picture = formatted_picture;
padding_src = formatted_picture;
resampling_dst = &ost->pict_tmp;
if (ost->video_pad) {
final_picture = &ost->pict_tmp;
if (ost->video_resample) {
if (av_picture_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
fprintf(stderr, "error padding picture\n");
if (exit_on_error)
av_exit(1);
return;
}
resampling_dst = &picture_pad_temp;
}
}
if (ost->video_resample) {
padding_src = NULL;
final_picture = &ost->pict_tmp;
sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
}
if (ost->video_pad) {
av_picture_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
enc->height, enc->width, enc->pix_fmt,
ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
}
/* duplicates frame if needed */
for(i=0;i<nb_frames;i++) {
AVPacket pkt;
av_init_packet(&pkt);
pkt.stream_index= ost->index;
if (s->oformat->flags & AVFMT_RAWPICTURE) {
/* raw pictures are written as AVPicture structure to
avoid any copies. We support temorarily the older
method. */
AVFrame* old_frame = enc->coded_frame;
enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
pkt.data= (uint8_t *)final_picture;
pkt.size= sizeof(AVPicture);
pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
pkt.flags |= PKT_FLAG_KEY;
write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
enc->coded_frame = old_frame;
} else {
AVFrame big_picture;
big_picture= *final_picture;
/* better than nothing: use input picture interlaced
settings */
big_picture.interlaced_frame = in_picture->interlaced_frame;
if(avctx_opts[CODEC_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
if(top_field_first == -1)
big_picture.top_field_first = in_picture->top_field_first;
else
big_picture.top_field_first = top_field_first;
}
/* handles sameq here. This is not correct because it may
not be a global option */
if (same_quality) {
big_picture.quality = ist->st->quality;
}else
big_picture.quality = ost->st->quality;
if(!me_threshold)
big_picture.pict_type = 0;
// big_picture.pts = AV_NOPTS_VALUE;
big_picture.pts= ost->sync_opts;
// big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
//av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
ret = avcodec_encode_video(enc,
bit_buffer, bit_buffer_size,
&big_picture);
if (ret < 0) {
fprintf(stderr, "Video encoding failed\n");
av_exit(1);
}
//enc->frame_number = enc->real_pict_num;
if(ret>0){
pkt.data= bit_buffer;
pkt.size= ret;
if(enc->coded_frame->pts != AV_NOPTS_VALUE)
pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
/*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
if(enc->coded_frame->key_frame)
pkt.flags |= PKT_FLAG_KEY;
write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
*frame_size = ret;
video_size += ret;
//fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
// enc->frame_number-1, enc->real_pict_num, ret,
// enc->pict_type);
/* if two pass, output log */
if (ost->logfile && enc->stats_out) {
fprintf(ost->logfile, "%s", enc->stats_out);
}
}
}
ost->sync_opts++;
ost->frame_number++;
}
}
static double psnr(double d){
return -10.0*log(d)/log(10.0);
}
static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
int frame_size)
{
AVCodecContext *enc;
int frame_number;
double ti1, bitrate, avg_bitrate;
/* this is executed just the first time do_video_stats is called */
if (!vstats_file) {
vstats_file = fopen(vstats_filename, "w");
if (!vstats_file) {
perror("fopen");
av_exit(1);
}
}
enc = ost->st->codec;
if (enc->codec_type == CODEC_TYPE_VIDEO) {
frame_number = ost->frame_number;
fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
if (enc->flags&CODEC_FLAG_PSNR)
fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
fprintf(vstats_file,"f_size= %6d ", frame_size);
/* compute pts value */
ti1 = ost->sync_opts * av_q2d(enc->time_base);
if (ti1 < 0.01)
ti1 = 0.01;
bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
(double)video_size / 1024, ti1, bitrate, avg_bitrate);
fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
}
}
static void print_report(AVFormatContext **output_files,
AVOutputStream **ost_table, int nb_ostreams,
int is_last_report)
{
char buf[1024];
AVOutputStream *ost;
AVFormatContext *oc, *os;
int64_t total_size;
AVCodecContext *enc;
int frame_number, vid, i;
double bitrate, ti1, pts;
static int64_t last_time = -1;
static int qp_histogram[52];
if (!is_last_report) {
int64_t cur_time;
/* display the report every 0.5 seconds */
cur_time = av_gettime();
if (last_time == -1) {
last_time = cur_time;
return;
}
if ((cur_time - last_time) < 500000)
return;
last_time = cur_time;
}
oc = output_files[0];
total_size = url_fsize(oc->pb);
if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
total_size= url_ftell(oc->pb);
buf[0] = '\0';
ti1 = 1e10;
vid = 0;
for(i=0;i<nb_ostreams;i++) {
ost = ost_table[i];
os = output_files[ost->file_index];
enc = ost->st->codec;
if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
!ost->st->stream_copy ?
enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
}
if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
float t = (av_gettime()-timer_start) / 1000000.0;
frame_number = ost->frame_number;
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
!ost->st->stream_copy ?
enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
if(is_last_report)
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
if(qp_hist){
int j;
int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
qp_histogram[qp]++;
for(j=0; j<32; j++)
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
}
if (enc->flags&CODEC_FLAG_PSNR){
int j;
double error, error_sum=0;
double scale, scale_sum=0;
char type[3]= {'Y','U','V'};
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
for(j=0; j<3; j++){
if(is_last_report){
error= enc->error[j];
scale= enc->width*enc->height*255.0*255.0*frame_number;
}else{
error= enc->coded_frame->error[j];
scale= enc->width*enc->height*255.0*255.0;
}
if(j) scale/=4;
error_sum += error;
scale_sum += scale;
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
}
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
}
vid = 1;
}
/* compute min output value */
pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
if ((pts < ti1) && (pts > 0))
ti1 = pts;
}
if (ti1 < 0.01)
ti1 = 0.01;
if (verbose || is_last_report) {
bitrate = (double)(total_size * 8) / ti1 / 1000.0;
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
"size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
(double)total_size / 1024, ti1, bitrate);
if (verbose > 1)
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
nb_frames_dup, nb_frames_drop);
if (verbose >= 0)
fprintf(stderr, "%s \r", buf);
fflush(stderr);
}
if (is_last_report && verbose >= 0){
int64_t raw= audio_size + video_size + extra_size;
fprintf(stderr, "\n");
fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
video_size/1024.0,
audio_size/1024.0,
extra_size/1024.0,
100.0*(total_size - raw)/raw
);
}
}
/* pkt = NULL means EOF (needed to flush decoder buffers) */
static int output_packet(AVInputStream *ist, int ist_index,
AVOutputStream **ost_table, int nb_ostreams,
const AVPacket *pkt)
{
AVFormatContext *os;
AVOutputStream *ost;
uint8_t *ptr;
int len, ret, i;
uint8_t *data_buf;
int data_size, got_picture;
AVFrame picture;
void *buffer_to_free;
static unsigned int samples_size= 0;
static short *samples= NULL;
AVSubtitle subtitle, *subtitle_to_free;
int got_subtitle;
if(ist->next_pts == AV_NOPTS_VALUE)
ist->next_pts= ist->pts;
if (pkt == NULL) {
/* EOF handling */
ptr = NULL;
len = 0;
goto handle_eof;
}
if(pkt->dts != AV_NOPTS_VALUE)
ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
len = pkt->size;
ptr = pkt->data;
//while we have more to decode or while the decoder did output something on EOF
while (len > 0 || (!pkt && ist->next_pts != ist->pts)) {
handle_eof:
ist->pts= ist->next_pts;
if(len && len != pkt->size && verbose>0)
fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
/* decode the packet if needed */
data_buf = NULL; /* fail safe */
data_size = 0;
subtitle_to_free = NULL;
if (ist->decoding_needed) {
switch(ist->st->codec->codec_type) {
case CODEC_TYPE_AUDIO:{
if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
av_free(samples);
samples= av_malloc(samples_size);
}
data_size= samples_size;
/* XXX: could avoid copy if PCM 16 bits with same
endianness as CPU */
ret = avcodec_decode_audio2(ist->st->codec, samples, &data_size,
ptr, len);
if (ret < 0)
goto fail_decode;
ptr += ret;
len -= ret;
/* Some bug in mpeg audio decoder gives */
/* data_size < 0, it seems they are overflows */
if (data_size <= 0) {
/* no audio frame */
continue;
}
data_buf = (uint8_t *)samples;
ist->next_pts += ((int64_t)AV_TIME_BASE/2 * data_size) /
(ist->st->codec->sample_rate * ist->st->codec->channels);
break;}
case CODEC_TYPE_VIDEO:
data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
/* XXX: allocate picture correctly */
avcodec_get_frame_defaults(&picture);
ret = avcodec_decode_video(ist->st->codec,
&picture, &got_picture, ptr, len);
ist->st->quality= picture.quality;
if (ret < 0)
goto fail_decode;
if (!got_picture) {
/* no picture yet */
goto discard_packet;
}
if (ist->st->codec->time_base.num != 0) {
int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
ist->next_pts += ((int64_t)AV_TIME_BASE *
ist->st->codec->time_base.num * ticks) /
ist->st->codec->time_base.den;
}
len = 0;
break;
case CODEC_TYPE_SUBTITLE:
ret = avcodec_decode_subtitle(ist->st->codec,
&subtitle, &got_subtitle, ptr, len);
if (ret < 0)
goto fail_decode;
if (!got_subtitle) {
goto discard_packet;
}
subtitle_to_free = &subtitle;
len = 0;
break;
default:
goto fail_decode;
}
} else {
switch(ist->st->codec->codec_type) {
case CODEC_TYPE_AUDIO:
ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
ist->st->codec->sample_rate;
break;
case CODEC_TYPE_VIDEO:
if (ist->st->codec->time_base.num != 0) {
int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
ist->next_pts += ((int64_t)AV_TIME_BASE *
ist->st->codec->time_base.num * ticks) /
ist->st->codec->time_base.den;
}
break;
}
data_buf = ptr;
data_size = len;
ret = len;
len = 0;
}
buffer_to_free = NULL;
if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
pre_process_video_frame(ist, (AVPicture *)&picture,
&buffer_to_free);
}
// preprocess audio (volume)
if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
if (audio_volume != 256) {
short *volp;
volp = samples;
for(i=0;i<(data_size / sizeof(short));i++) {
int v = ((*volp) * audio_volume + 128) >> 8;
if (v < -32768) v = -32768;
if (v > 32767) v = 32767;
*volp++ = v;
}
}
}
/* frame rate emulation */
if (rate_emu) {
int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
int64_t now = av_gettime() - ist->start;
if (pts > now)
usleep(pts - now);
}
/* if output time reached then transcode raw format,
encode packets and output them */
if (start_time == 0 || ist->pts >= start_time)
for(i=0;i<nb_ostreams;i++) {
int frame_size;
ost = ost_table[i];
if (ost->source_index == ist_index) {
os = output_files[ost->file_index];
#if 0
printf("%d: got pts=%0.3f %0.3f\n", i,
(double)pkt->pts / AV_TIME_BASE,
((double)ist->pts / AV_TIME_BASE) -
((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
#endif
/* set the input output pts pairs */
//ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
if (ost->encoding_needed) {
switch(ost->st->codec->codec_type) {
case CODEC_TYPE_AUDIO:
do_audio_out(os, ost, ist, data_buf, data_size);
break;
case CODEC_TYPE_VIDEO:
do_video_out(os, ost, ist, &picture, &frame_size);
if (vstats_filename && frame_size)
do_video_stats(os, ost, frame_size);
break;
case CODEC_TYPE_SUBTITLE:
do_subtitle_out(os, ost, ist, &subtitle,
pkt->pts);
break;
default:
abort();
}
} else {
AVFrame avframe; //FIXME/XXX remove this
AVPacket opkt;
av_init_packet(&opkt);
if ((!ost->frame_number && !(pkt->flags & PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
continue;
/* no reencoding needed : output the packet directly */
/* force the input stream PTS */
avcodec_get_frame_defaults(&avframe);
ost->st->codec->coded_frame= &avframe;
avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
audio_size += data_size;
else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
video_size += data_size;
ost->sync_opts++;
}
opkt.stream_index= ost->index;
if(pkt->pts != AV_NOPTS_VALUE)
opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base);
else
opkt.pts= AV_NOPTS_VALUE;
if (pkt->dts == AV_NOPTS_VALUE)
opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
else
opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
opkt.flags= pkt->flags;
//FIXME remove the following 2 lines they shall be replaced by the bitstream filters
if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
opkt.destruct= av_destruct_packet;
write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
ost->st->codec->frame_number++;
ost->frame_number++;
av_free_packet(&opkt);
}
}
}
av_free(buffer_to_free);
/* XXX: allocate the subtitles in the codec ? */
if (subtitle_to_free) {
if (subtitle_to_free->rects != NULL) {
for (i = 0; i < subtitle_to_free->num_rects; i++) {
av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
av_freep(&subtitle_to_free->rects[i]);
}
av_freep(&subtitle_to_free->rects);
}
subtitle_to_free->num_rects = 0;
subtitle_to_free = NULL;
}
}
discard_packet:
if (pkt == NULL) {
/* EOF handling */
for(i=0;i<nb_ostreams;i++) {
ost = ost_table[i];
if (ost->source_index == ist_index) {
AVCodecContext *enc= ost->st->codec;
os = output_files[ost->file_index];
if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
continue;
if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
continue;
if (ost->encoding_needed) {
for(;;) {
AVPacket pkt;
int fifo_bytes;
av_init_packet(&pkt);
pkt.stream_index= ost->index;
switch(ost->st->codec->codec_type) {
case CODEC_TYPE_AUDIO:
fifo_bytes = av_fifo_size(&ost->fifo);
ret = 0;
/* encode any samples remaining in fifo */
if(fifo_bytes > 0 && enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
int fs_tmp = enc->frame_size;
enc->frame_size = fifo_bytes / (2 * enc->channels);
av_fifo_read(&ost->fifo, (uint8_t *)samples, fifo_bytes);
ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
enc->frame_size = fs_tmp;
}
if(ret <= 0) {
ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
}
if (ret < 0) {
fprintf(stderr, "Audio encoding failed\n");
av_exit(1);
}
audio_size += ret;
pkt.flags |= PKT_FLAG_KEY;
break;
case CODEC_TYPE_VIDEO:
ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
if (ret < 0) {
fprintf(stderr, "Video encoding failed\n");
av_exit(1);
}
video_size += ret;
if(enc->coded_frame && enc->coded_frame->key_frame)
pkt.flags |= PKT_FLAG_KEY;
if (ost->logfile && enc->stats_out) {
fprintf(ost->logfile, "%s", enc->stats_out);
}
break;
default:
ret=-1;
}
if(ret<=0)
break;
pkt.data= bit_buffer;
pkt.size= ret;
if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
}
}
}
}
}
return 0;
fail_decode:
return -1;
}
static void print_sdp(AVFormatContext **avc, int n)
{
char sdp[2048];
avf_sdp_create(avc, n, sdp, sizeof(sdp));
printf("SDP:\n%s\n", sdp);
fflush(stdout);
}
static int stream_index_from_inputs(AVFormatContext **input_files,
int nb_input_files,
AVInputFile *file_table,
AVInputStream **ist_table,
enum CodecType type,
int programid)
{
int p, q, z;
for(z=0; z<nb_input_files; z++) {
AVFormatContext *ic = input_files[z];
for(p=0; p<ic->nb_programs; p++) {
AVProgram *program = ic->programs[p];
if(program->id != programid)
continue;
for(q=0; q<program->nb_stream_indexes; q++) {
int sidx = program->stream_index[q];
int ris = file_table[z].ist_index + sidx;
if(ist_table[ris]->discard && ic->streams[sidx]->codec->codec_type == type)
return ris;
}
}
}
return -1;
}
/*
* The following code is the main loop of the file converter
*/
static int av_encode(AVFormatContext **output_files,
int nb_output_files,
AVFormatContext **input_files,
int nb_input_files,
AVStreamMap *stream_maps, int nb_stream_maps)
{
int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
AVFormatContext *is, *os;
AVCodecContext *codec, *icodec;
AVOutputStream *ost, **ost_table = NULL;
AVInputStream *ist, **ist_table = NULL;
AVInputFile *file_table;
int key;
int want_sdp = 1;
file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
if (!file_table)
goto fail;
/* input stream init */
j = 0;
for(i=0;i<nb_input_files;i++) {
is = input_files[i];
file_table[i].ist_index = j;
file_table[i].nb_streams = is->nb_streams;
j += is->nb_streams;
}
nb_istreams = j;
ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
if (!ist_table)
goto fail;
for(i=0;i<nb_istreams;i++) {
ist = av_mallocz(sizeof(AVInputStream));
if (!ist)
goto fail;
ist_table[i] = ist;
}
j = 0;
for(i=0;i<nb_input_files;i++) {
is = input_files[i];
for(k=0;k<is->nb_streams;k++) {
ist = ist_table[j++];
ist->st = is->streams[k];
ist->file_index = i;
ist->index = k;
ist->discard = 1; /* the stream is discarded by default
(changed later) */
if (rate_emu) {
ist->start = av_gettime();
}
}
}
/* output stream init */
nb_ostreams = 0;
for(i=0;i<nb_output_files;i++) {
os = output_files[i];
if (!os->nb_streams) {
dump_format(output_files[i], i, output_files[i]->filename, 1);
fprintf(stderr, "Output file #%d does not contain any stream\n", i);
av_exit(1);
}
nb_ostreams += os->nb_streams;
}
if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
fprintf(stderr, "Number of stream maps must match number of output streams\n");
av_exit(1);
}
/* Sanity check the mapping args -- do the input files & streams exist? */
for(i=0;i<nb_stream_maps;i++) {
int fi = stream_maps[i].file_index;
int si = stream_maps[i].stream_index;
if (fi < 0 || fi > nb_input_files - 1 ||
si < 0 || si > file_table[fi].nb_streams - 1) {
fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
av_exit(1);
}
fi = stream_maps[i].sync_file_index;
si = stream_maps[i].sync_stream_index;
if (fi < 0 || fi > nb_input_files - 1 ||
si < 0 || si > file_table[fi].nb_streams - 1) {
fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
av_exit(1);
}
}
ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
if (!ost_table)
goto fail;
for(i=0;i<nb_ostreams;i++) {
ost = av_mallocz(sizeof(AVOutputStream));
if (!ost)
goto fail;
ost_table[i] = ost;
}
n = 0;
for(k=0;k<nb_output_files;k++) {
os = output_files[k];
for(i=0;i<os->nb_streams;i++,n++) {
int found;
ost = ost_table[n];
ost->file_index = k;
ost->index = i;
ost->st = os->streams[i];
if (nb_stream_maps > 0) {
ost->source_index = file_table[stream_maps[n].file_index].ist_index +
stream_maps[n].stream_index;
/* Sanity check that the stream types match */
if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
int i= ost->file_index;
dump_format(output_files[i], i, output_files[i]->filename, 1);
fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
stream_maps[n].file_index, stream_maps[n].stream_index,
ost->file_index, ost->index);
av_exit(1);
}
} else {
if(opt_programid) {
found = 0;
j = stream_index_from_inputs(input_files, nb_input_files, file_table, ist_table, ost->st->codec->codec_type, opt_programid);
if(j != -1) {
ost->source_index = j;
found = 1;
}
} else {
/* get corresponding input stream index : we select the first one with the right type */
found = 0;
for(j=0;j<nb_istreams;j++) {
ist = ist_table[j];
if (ist->discard &&
ist->st->codec->codec_type == ost->st->codec->codec_type) {
ost->source_index = j;
found = 1;
break;
}
}
}
if (!found) {
if(! opt_programid) {
/* try again and reuse existing stream */
for(j=0;j<nb_istreams;j++) {
ist = ist_table[j];
if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
ost->source_index = j;
found = 1;
}
}
}
if (!found) {
int i= ost->file_index;
dump_format(output_files[i], i, output_files[i]->filename, 1);
fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
ost->file_index, ost->index);
av_exit(1);
}
}
}
ist = ist_table[ost->source_index];
ist->discard = 0;
ost->sync_ist = (nb_stream_maps > 0) ?
ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
stream_maps[n].sync_stream_index] : ist;
}
}
/* for each output stream, we compute the right encoding parameters */
for(i=0;i<nb_ostreams;i++) {
AVMetadataTag *lang;
ost = ost_table[i];
os = output_files[ost->file_index];
ist = ist_table[ost->source_index];
codec = ost->st->codec;
icodec = ist->st->codec;
if ((lang=av_metadata_get(ist->st->metadata, "language", NULL, 0))
&& !av_metadata_get(ost->st->metadata, "language", NULL, 0))
av_metadata_set(&ost->st->metadata, "language", lang->value);
ost->st->disposition = ist->st->disposition;
if (ost->st->stream_copy) {
/* if stream_copy is selected, no need to decode or encode */
codec->codec_id = icodec->codec_id;
codec->codec_type = icodec->codec_type;
if(!codec->codec_tag){
if( !os->oformat->codec_tag
|| av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) > 0
|| av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
codec->codec_tag = icodec->codec_tag;
}
codec->bit_rate = icodec->bit_rate;
codec->extradata= icodec->extradata;
codec->extradata_size= icodec->extradata_size;
if(av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000){
codec->time_base = icodec->time_base;
codec->time_base.num *= icodec->ticks_per_frame;
}else
codec->time_base = ist->st->time_base;
switch(codec->codec_type) {
case CODEC_TYPE_AUDIO:
if(audio_volume != 256) {
fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
av_exit(1);
}
codec->channel_layout = icodec->channel_layout;
codec->sample_rate = icodec->sample_rate;
codec->channels = icodec->channels;
codec->frame_size = icodec->frame_size;
codec->block_align= icodec->block_align;
if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
codec->block_align= 0;
if(codec->codec_id == CODEC_ID_AC3)
codec->block_align= 0;
break;
case CODEC_TYPE_VIDEO:
if(using_vhook) {
fprintf(stderr,"-vcodec copy and -vhook are incompatible (frames are not decoded)\n");
av_exit(1);
}
codec->pix_fmt = icodec->pix_fmt;
codec->width = icodec->width;
codec->height = icodec->height;
codec->has_b_frames = icodec->has_b_frames;
break;
case CODEC_TYPE_SUBTITLE:
codec->width = icodec->width;
codec->height = icodec->height;
break;
default:
abort();
}
} else {
switch(codec->codec_type) {
case CODEC_TYPE_AUDIO:
if (av_fifo_init(&ost->fifo, 1024))
goto fail;
ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
icodec->request_channels = codec->channels;
ist->decoding_needed = 1;
ost->encoding_needed = 1;
break;
case CODEC_TYPE_VIDEO:
ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
ost->video_resample = ((codec->width != icodec->width -
(frame_leftBand + frame_rightBand) +
(frame_padleft + frame_padright)) ||
(codec->height != icodec->height -
(frame_topBand + frame_bottomBand) +
(frame_padtop + frame_padbottom)) ||
(codec->pix_fmt != icodec->pix_fmt));
if (ost->video_crop) {
ost->topBand = frame_topBand;
ost->leftBand = frame_leftBand;
}
if (ost->video_pad) {
ost->padtop = frame_padtop;
ost->padleft = frame_padleft;
ost->padbottom = frame_padbottom;
ost->padright = frame_padright;
if (!ost->video_resample) {
avcodec_get_frame_defaults(&ost->pict_tmp);
if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
codec->width, codec->height))
goto fail;
}
}
if (ost->video_resample) {
avcodec_get_frame_defaults(&ost->pict_tmp);
if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
codec->width, codec->height)) {
fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
av_exit(1);
}
sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
ost->img_resample_ctx = sws_getContext(
icodec->width - (frame_leftBand + frame_rightBand),
icodec->height - (frame_topBand + frame_bottomBand),
icodec->pix_fmt,
codec->width - (frame_padleft + frame_padright),
codec->height - (frame_padtop + frame_padbottom),
codec->pix_fmt,
sws_flags, NULL, NULL, NULL);
if (ost->img_resample_ctx == NULL) {
fprintf(stderr, "Cannot get resampling context\n");
av_exit(1);
}
ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
}
ost->encoding_needed = 1;
ist->decoding_needed = 1;
break;
case CODEC_TYPE_SUBTITLE:
ost->encoding_needed = 1;
ist->decoding_needed = 1;
break;
default:
abort();
break;
}
/* two pass mode */
if (ost->encoding_needed &&
(codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
char logfilename[1024];
FILE *f;
int size;
char *logbuffer;
snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
i);
if (codec->flags & CODEC_FLAG_PASS1) {
f = fopen(logfilename, "w");
if (!f) {
fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
av_exit(1);
}
ost->logfile = f;
} else {
/* read the log file */
f = fopen(logfilename, "r");
if (!f) {
fprintf(stderr, "Cannot read log file '%s' for pass-2 encoding: %s\n", logfilename, strerror(errno));
av_exit(1);
}
fseek(f, 0, SEEK_END);
size = ftell(f);
fseek(f, 0, SEEK_SET);
logbuffer = av_malloc(size + 1);
if (!logbuffer) {
fprintf(stderr, "Could not allocate log buffer\n");
av_exit(1);
}
size = fread(logbuffer, 1, size, f);
fclose(f);
logbuffer[size] = '\0';
codec->stats_in = logbuffer;
}
}
}
if(codec->codec_type == CODEC_TYPE_VIDEO){
int size= codec->width * codec->height;
bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
}
}
if (!bit_buffer)
bit_buffer = av_malloc(bit_buffer_size);
if (!bit_buffer)
goto fail;
/* dump the file output parameters - cannot be done before in case
of stream copy */
for(i=0;i<nb_output_files;i++) {
dump_format(output_files[i], i, output_files[i]->filename, 1);
}
/* dump the stream mapping */
if (verbose >= 0) {
fprintf(stderr, "Stream mapping:\n");
for(i=0;i<nb_ostreams;i++) {
ost = ost_table[i];
fprintf(stderr, " Stream #%d.%d -> #%d.%d",
ist_table[ost->source_index]->file_index,
ist_table[ost->source_index]->index,
ost->file_index,
ost->index);
if (ost->sync_ist != ist_table[ost->source_index])
fprintf(stderr, " [sync #%d.%d]",
ost->sync_ist->file_index,
ost->sync_ist->index);
fprintf(stderr, "\n");
}
}
/* open each encoder */
for(i=0;i<nb_ostreams;i++) {
ost = ost_table[i];
if (ost->encoding_needed) {
AVCodec *codec = output_codecs[i];
if (!codec)
codec = avcodec_find_encoder(ost->st->codec->codec_id);
if (!codec) {
fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
ost->file_index, ost->index);
av_exit(1);
}
if (avcodec_open(ost->st->codec, codec) < 0) {
fprintf(stderr, "Error while opening codec for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
ost->file_index, ost->index);
av_exit(1);
}
extra_size += ost->st->codec->extradata_size;
}
}
/* open each decoder */
for(i=0;i<nb_istreams;i++) {
ist = ist_table[i];
if (ist->decoding_needed) {
AVCodec *codec = input_codecs[i];
if (!codec)
codec = avcodec_find_decoder(ist->st->codec->codec_id);
if (!codec) {
fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
ist->st->codec->codec_id, ist->file_index, ist->index);
av_exit(1);
}
if (avcodec_open(ist->st->codec, codec) < 0) {
fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
ist->file_index, ist->index);
av_exit(1);
}
//if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
// ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
}
}
/* init pts */
for(i=0;i<nb_istreams;i++) {
ist = ist_table[i];
is = input_files[ist->file_index];
ist->pts = 0;
ist->next_pts = AV_NOPTS_VALUE;
ist->is_start = 1;
}
/* set meta data information from input file if required */
for (i=0;i<nb_meta_data_maps;i++) {
AVFormatContext *out_file;
AVFormatContext *in_file;
AVMetadataTag *mtag;
int out_file_index = meta_data_maps[i].out_file;
int in_file_index = meta_data_maps[i].in_file;
if (out_file_index < 0 || out_file_index >= nb_output_files) {
fprintf(stderr, "Invalid output file index %d map_meta_data(%d,%d)\n", out_file_index, out_file_index, in_file_index);
ret = AVERROR(EINVAL);
goto fail;
}
if (in_file_index < 0 || in_file_index >= nb_input_files) {
fprintf(stderr, "Invalid input file index %d map_meta_data(%d,%d)\n", in_file_index, out_file_index, in_file_index);
ret = AVERROR(EINVAL);
goto fail;
}
out_file = output_files[out_file_index];
in_file = input_files[in_file_index];
mtag=NULL;
while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
av_metadata_set(&out_file->metadata, mtag->key, mtag->value);
av_metadata_conv(out_file, out_file->oformat->metadata_conv,
in_file->iformat->metadata_conv);
}
/* open files and write file headers */
for(i=0;i<nb_output_files;i++) {
os = output_files[i];
if (av_write_header(os) < 0) {
fprintf(stderr, "Could not write header for output file #%d (incorrect codec parameters ?)\n", i);
ret = AVERROR(EINVAL);
goto fail;
}
if (strcmp(output_files[i]->oformat->name, "rtp")) {
want_sdp = 0;
}
}
if (want_sdp) {
print_sdp(output_files, nb_output_files);
}
if (!using_stdin && verbose >= 0) {
fprintf(stderr, "Press [q] to stop encoding\n");
url_set_interrupt_cb(decode_interrupt_cb);
}
term_init();
key = -1;
timer_start = av_gettime();
for(; received_sigterm == 0;) {
int file_index, ist_index;
AVPacket pkt;
double ipts_min;
double opts_min;
redo:
ipts_min= 1e100;
opts_min= 1e100;
/* if 'q' pressed, exits */
if (!using_stdin) {
if (q_pressed)
break;
/* read_key() returns 0 on EOF */
key = read_key();
if (key == 'q')
break;
}
/* select the stream that we must read now by looking at the
smallest output pts */
file_index = -1;
for(i=0;i<nb_ostreams;i++) {
double ipts, opts;
ost = ost_table[i];
os = output_files[ost->file_index];
ist = ist_table[ost->source_index];
if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
else
opts = ost->st->pts.val * av_q2d(ost->st->time_base);
ipts = (double)ist->pts;
if (!file_table[ist->file_index].eof_reached){
if(ipts < ipts_min) {
ipts_min = ipts;
if(input_sync ) file_index = ist->file_index;
}
if(opts < opts_min) {
opts_min = opts;
if(!input_sync) file_index = ist->file_index;
}
}
if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
file_index= -1;
break;
}
}
/* if none, if is finished */
if (file_index < 0) {
break;
}
/* finish if recording time exhausted */
if (opts_min >= (recording_time / 1000000.0))
break;
/* finish if limit size exhausted */
if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
break;
/* read a frame from it and output it in the fifo */
is = input_files[file_index];
if (av_read_frame(is, &pkt) < 0) {
file_table[file_index].eof_reached = 1;
if (opt_shortest)
break;
else
continue;
}
if (do_pkt_dump) {
av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
}
/* the following test is needed in case new streams appear
dynamically in stream : we ignore them */
if (pkt.stream_index >= file_table[file_index].nb_streams)
goto discard_packet;
ist_index = file_table[file_index].ist_index + pkt.stream_index;
ist = ist_table[ist_index];
if (ist->discard)
goto discard_packet;
if (pkt.dts != AV_NOPTS_VALUE)
pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
if (pkt.pts != AV_NOPTS_VALUE)
pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
if(input_files_ts_scale[file_index][pkt.stream_index]){
if(pkt.pts != AV_NOPTS_VALUE)
pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
if(pkt.dts != AV_NOPTS_VALUE)
pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
}
// fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
&& (is->iformat->flags & AVFMT_TS_DISCONT)) {
int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
int64_t delta= pkt_dts - ist->next_pts;
if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
input_files_ts_offset[ist->file_index]-= delta;
if (verbose > 2)
fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
if(pkt.pts != AV_NOPTS_VALUE)
pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
}
}
//fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
if (verbose >= 0)
fprintf(stderr, "Error while decoding stream #%d.%d\n",
ist->file_index, ist->index);
if (exit_on_error)
av_exit(1);
av_free_packet(&pkt);
goto redo;
}
discard_packet:
av_free_packet(&pkt);
/* dump report by using the output first video and audio streams */
print_report(output_files, ost_table, nb_ostreams, 0);
}
/* at the end of stream, we must flush the decoder buffers */
for(i=0;i<nb_istreams;i++) {
ist = ist_table[i];
if (ist->decoding_needed) {
output_packet(ist, i, ost_table, nb_ostreams, NULL);
}
}
term_exit();
/* write the trailer if needed and close file */
for(i=0;i<nb_output_files;i++) {
os = output_files[i];
av_write_trailer(os);
}
/* dump report by using the first video and audio streams */
print_report(output_files, ost_table, nb_ostreams, 1);
/* close each encoder */
for(i=0;i<nb_ostreams;i++) {
ost = ost_table[i];
if (ost->encoding_needed) {
av_freep(&ost->st->codec->stats_in);
avcodec_close(ost->st->codec);
}
}
/* close each decoder */
for(i=0;i<nb_istreams;i++) {
ist = ist_table[i];
if (ist->decoding_needed) {
avcodec_close(ist->st->codec);
}
}
/* finished ! */
ret = 0;
fail1:
av_freep(&bit_buffer);
av_free(file_table);
if (ist_table) {
for(i=0;i<nb_istreams;i++) {
ist = ist_table[i];
av_free(ist);
}
av_free(ist_table);
}
if (ost_table) {
for(i=0;i<nb_ostreams;i++) {
ost = ost_table[i];
if (ost) {
if (ost->logfile) {
fclose(ost->logfile);
ost->logfile = NULL;
}
av_fifo_free(&ost->fifo); /* works even if fifo is not
initialized but set to zero */
av_free(ost->pict_tmp.data[0]);
if (ost->video_resample)
sws_freeContext(ost->img_resample_ctx);
if (ost->resample)
audio_resample_close(ost->resample);
if (ost->reformat_ctx)
av_audio_convert_free(ost->reformat_ctx);
av_free(ost);
}
}
av_free(ost_table);
}
return ret;
fail:
ret = AVERROR(ENOMEM);
goto fail1;
}
#if 0
int file_read(const char *filename)
{
URLContext *h;
unsigned char buffer[1024];
int len, i;
if (url_open(&h, filename, O_RDONLY) < 0) {
printf("could not open '%s'\n", filename);
return -1;
}
for(;;) {
len = url_read(h, buffer, sizeof(buffer));
if (len <= 0)
break;
for(i=0;i<len;i++) putchar(buffer[i]);
}
url_close(h);
return 0;
}
#endif
static void opt_format(const char *arg)
{
/* compatibility stuff for pgmyuv */
if (!strcmp(arg, "pgmyuv")) {
pgmyuv_compatibility_hack=1;
// opt_image_format(arg);
arg = "image2";
fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
}
file_iformat = av_find_input_format(arg);
file_oformat = guess_format(arg, NULL, NULL);
if (!file_iformat && !file_oformat) {
fprintf(stderr, "Unknown input or output format: %s\n", arg);
av_exit(1);
}
}
static void opt_video_rc_override_string(const char *arg)
{
video_rc_override_string = arg;
}
static int opt_me_threshold(const char *opt, const char *arg)
{
me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
return 0;
}
static int opt_verbose(const char *opt, const char *arg)
{
verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
av_log_set_level(verbose);
return 0;
}
static int opt_frame_rate(const char *opt, const char *arg)
{
if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
av_exit(1);
}
return 0;
}
static int opt_bitrate(const char *opt, const char *arg)
{
int codec_type = opt[0]=='a' ? CODEC_TYPE_AUDIO : CODEC_TYPE_VIDEO;
opt_default(opt, arg);
if (av_get_int(avctx_opts[codec_type], "b", NULL) < 1000)
fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
return 0;
}
static void opt_frame_crop_top(const char *arg)
{
frame_topBand = atoi(arg);
if (frame_topBand < 0) {
fprintf(stderr, "Incorrect top crop size\n");
av_exit(1);
}
if ((frame_topBand % 2) != 0) {
fprintf(stderr, "Top crop size must be a multiple of 2\n");
av_exit(1);
}
if ((frame_topBand) >= frame_height){
fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
av_exit(1);
}
frame_height -= frame_topBand;
}
static void opt_frame_crop_bottom(const char *arg)
{
frame_bottomBand = atoi(arg);
if (frame_bottomBand < 0) {
fprintf(stderr, "Incorrect bottom crop size\n");
av_exit(1);
}
if ((frame_bottomBand % 2) != 0) {
fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
av_exit(1);
}
if ((frame_bottomBand) >= frame_height){
fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
av_exit(1);
}
frame_height -= frame_bottomBand;
}
static void opt_frame_crop_left(const char *arg)
{
frame_leftBand = atoi(arg);
if (frame_leftBand < 0) {
fprintf(stderr, "Incorrect left crop size\n");
av_exit(1);
}
if ((frame_leftBand % 2) != 0) {
fprintf(stderr, "Left crop size must be a multiple of 2\n");
av_exit(1);
}
if ((frame_leftBand) >= frame_width){
fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
av_exit(1);
}
frame_width -= frame_leftBand;
}
static void opt_frame_crop_right(const char *arg)
{
frame_rightBand = atoi(arg);
if (frame_rightBand < 0) {
fprintf(stderr, "Incorrect right crop size\n");
av_exit(1);
}
if ((frame_rightBand % 2) != 0) {
fprintf(stderr, "Right crop size must be a multiple of 2\n");
av_exit(1);
}
if ((frame_rightBand) >= frame_width){
fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
av_exit(1);
}
frame_width -= frame_rightBand;
}
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");
av_exit(1);
}
if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
fprintf(stderr, "Frame size must be a multiple of 2\n");
av_exit(1);
}
}
#define SCALEBITS 10
#define ONE_HALF (1 << (SCALEBITS - 1))
#define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
#define RGB_TO_Y(r, g, b) \
((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS)
#define RGB_TO_U(r1, g1, b1, shift)\
(((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
#define RGB_TO_V(r1, g1, b1, shift)\
(((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
static void opt_pad_color(const char *arg) {
/* Input is expected to be six hex digits similar to
how colors are expressed in html tags (but without the #) */
int rgb = strtol(arg, NULL, 16);
int r,g,b;
r = (rgb >> 16);
g = ((rgb >> 8) & 255);
b = (rgb & 255);
padcolor[0] = RGB_TO_Y(r,g,b);
padcolor[1] = RGB_TO_U(r,g,b,0);
padcolor[2] = RGB_TO_V(r,g,b,0);
}
static void opt_frame_pad_top(const char *arg)
{
frame_padtop = atoi(arg);
if (frame_padtop < 0) {
fprintf(stderr, "Incorrect top pad size\n");
av_exit(1);
}
if ((frame_padtop % 2) != 0) {
fprintf(stderr, "Top pad size must be a multiple of 2\n");
av_exit(1);
}
}
static void opt_frame_pad_bottom(const char *arg)
{
frame_padbottom = atoi(arg);
if (frame_padbottom < 0) {
fprintf(stderr, "Incorrect bottom pad size\n");
av_exit(1);
}
if ((frame_padbottom % 2) != 0) {
fprintf(stderr, "Bottom pad size must be a multiple of 2\n");
av_exit(1);
}
}
static void opt_frame_pad_left(const char *arg)
{
frame_padleft = atoi(arg);
if (frame_padleft < 0) {
fprintf(stderr, "Incorrect left pad size\n");
av_exit(1);
}
if ((frame_padleft % 2) != 0) {
fprintf(stderr, "Left pad size must be a multiple of 2\n");
av_exit(1);
}
}
static void opt_frame_pad_right(const char *arg)
{
frame_padright = atoi(arg);
if (frame_padright < 0) {
fprintf(stderr, "Incorrect right pad size\n");
av_exit(1);
}
if ((frame_padright % 2) != 0) {
fprintf(stderr, "Right pad size must be a multiple of 2\n");
av_exit(1);
}
}
static void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts)
{
int i;
char fmt_str[128];
for (i=-1; i < nb_fmts; i++) {
get_fmt_string (fmt_str, sizeof(fmt_str), i);
fprintf(stdout, "%s\n", fmt_str);
}
}
static void opt_frame_pix_fmt(const char *arg)
{
if (strcmp(arg, "list"))
frame_pix_fmt = avcodec_get_pix_fmt(arg);
else {
list_fmts(avcodec_pix_fmt_string, PIX_FMT_NB);
av_exit(0);
}
}
static void opt_frame_aspect_ratio(const char *arg)
{
int x = 0, y = 0;
double ar = 0;
const char *p;
char *end;
p = strchr(arg, ':');
if (p) {
x = strtol(arg, &end, 10);
if (end == p)
y = strtol(end+1, &end, 10);
if (x > 0 && y > 0)
ar = (double)x / (double)y;
} else
ar = strtod(arg, NULL);
if (!ar) {
fprintf(stderr, "Incorrect aspect ratio specification.\n");
av_exit(1);
}
frame_aspect_ratio = ar;
}
static int opt_metadata(const char *opt, const char *arg)
{
char *mid= strchr(arg, '=');
if(!mid){
fprintf(stderr, "Missing =\n");
av_exit(1);
}
*mid++= 0;
metadata_count++;
metadata= av_realloc(metadata, sizeof(*metadata)*metadata_count);
metadata[metadata_count-1].key = av_strdup(arg);
metadata[metadata_count-1].value= av_strdup(mid);
return 0;
}
static void opt_qscale(const char *arg)
{
video_qscale = atof(arg);
if (video_qscale <= 0 ||
video_qscale > 255) {
fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
av_exit(1);
}
}
static void opt_top_field_first(const char *arg)
{
top_field_first= atoi(arg);
}
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
if (verbose >= 0)
fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
#endif
return 0;
}
static void opt_audio_sample_fmt(const char *arg)
{
if (strcmp(arg, "list"))
audio_sample_fmt = avcodec_get_sample_fmt(arg);
else {
list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
av_exit(0);
}
}
static int opt_audio_rate(const char *opt, const char *arg)
{
audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
return 0;
}
static int opt_audio_channels(const char *opt, const char *arg)
{
audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
return 0;
}
static void opt_video_channel(const char *arg)
{
video_channel = strtol(arg, NULL, 0);
}
static void opt_video_standard(const char *arg)
{
video_standard = av_strdup(arg);
}
static void opt_codec(int *pstream_copy, char **pcodec_name,
int codec_type, const char *arg)
{
av_freep(pcodec_name);
if (!strcmp(arg, "copy")) {
*pstream_copy = 1;
} else {
*pcodec_name = av_strdup(arg);
}
}
static void opt_audio_codec(const char *arg)
{
opt_codec(&audio_stream_copy, &audio_codec_name, CODEC_TYPE_AUDIO, arg);
}
static void opt_audio_tag(const char *arg)
{
char *tail;
audio_codec_tag= strtol(arg, &tail, 0);
if(!tail || *tail)
audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
}
static void opt_video_tag(const char *arg)
{
char *tail;
video_codec_tag= strtol(arg, &tail, 0);
if(!tail || *tail)
video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
}
#if CONFIG_VHOOK
static void add_frame_hooker(const char *arg)
{
int argc = 0;
char *argv[64];
int i;
char *args = av_strdup(arg);
using_vhook = 1;
argv[0] = strtok(args, " ");
while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
}
i = frame_hook_add(argc, argv);
if (i != 0) {
fprintf(stderr, "Failed to add video hook function: %s\n", arg);
av_exit(1);
}
}
#endif
static void opt_video_codec(const char *arg)
{
opt_codec(&video_stream_copy, &video_codec_name, CODEC_TYPE_VIDEO, arg);
}
static void opt_subtitle_codec(const char *arg)
{
opt_codec(&subtitle_stream_copy, &subtitle_codec_name, CODEC_TYPE_SUBTITLE, arg);
}
static void opt_map(const char *arg)
{
AVStreamMap *m;
char *p;
m = &stream_maps[nb_stream_maps++];
m->file_index = strtol(arg, &p, 0);
if (*p)
p++;
m->stream_index = strtol(p, &p, 0);
if (*p) {
p++;
m->sync_file_index = strtol(p, &p, 0);
if (*p)
p++;
m->sync_stream_index = strtol(p, &p, 0);
} else {
m->sync_file_index = m->file_index;
m->sync_stream_index = m->stream_index;
}
}
static void opt_map_meta_data(const char *arg)
{
AVMetaDataMap *m;
char *p;
m = &meta_data_maps[nb_meta_data_maps++];
m->out_file = strtol(arg, &p, 0);
if (*p)
p++;
m->in_file = strtol(p, &p, 0);
}
static void opt_input_ts_scale(const char *arg)
{
unsigned int stream;