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authorMichael Niedermayer <michaelni@gmx.at>2005-07-17 22:24:36 +0000
committerMichael Niedermayer <michaelni@gmx.at>2005-07-17 22:24:36 +0000
commit01f4895c682a1752bf6d138ffb0628470e16b85a (patch)
tree56a3dfce270dad38b97c8f7ff288cc23cfac54da /ffmpeg.c
parent4c1a012e9ceb0840688c547625208e7c4b81624a (diff)
downloadffmpeg-01f4895c682a1752bf6d138ffb0628470e16b85a.tar.gz
changing AVCodecContext codec -> *codec in AVStream so additions to AVCodecContext dont randomize AVStream and break binary compatibility
Originally committed as revision 4453 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'ffmpeg.c')
-rw-r--r--ffmpeg.c152
1 files changed, 76 insertions, 76 deletions
diff --git a/ffmpeg.c b/ffmpeg.c
index dac6029920..c86f61d8c4 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -493,7 +493,7 @@ static void do_audio_out(AVFormatContext *s,
const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
int size_out, frame_bytes, ret;
- AVCodecContext *enc= &ost->st->codec;
+ AVCodecContext *enc= ost->st->codec;
/* SC: dynamic allocation of buffers */
if (!audio_buf)
@@ -505,9 +505,9 @@ static void do_audio_out(AVFormatContext *s,
if(audio_sync_method){
double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
- - fifo_size(&ost->fifo, ost->fifo.rptr)/(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;
+ - fifo_size(&ost->fifo, ost->fifo.rptr)/(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){
@@ -542,19 +542,19 @@ static void do_audio_out(AVFormatContext *s,
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:%lld ipts:%lld fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), fifo_size(&ost->fifo, ost->fifo.rptr)/(ost->st->codec.channels * 2));
+// fprintf(stderr, "drift:%f len:%d opts:%lld ipts:%lld fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), fifo_size(&ost->fifo, ost->fifo.rptr)/(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)
- - fifo_size(&ost->fifo, ost->fifo.rptr)/(ost->st->codec.channels * 2); //FIXME wrong
+ - fifo_size(&ost->fifo, ost->fifo.rptr)/(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 * 2));
+ size / (ist->st->codec->channels * 2));
size_out = size_out * enc->channels * 2;
} else {
buftmp = buf;
@@ -625,7 +625,7 @@ static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void
AVPicture picture_tmp;
uint8_t *buf = 0;
- dec = &ist->st->codec;
+ dec = ist->st->codec;
/* deinterlace : must be done before any resize */
if (do_deinterlace || using_vhook) {
@@ -721,7 +721,7 @@ static void do_subtitle_out(AVFormatContext *s,
return;
}
- enc = &ost->st->codec;
+ enc = ost->st->codec;
if (!subtitle_out) {
subtitle_out = av_malloc(subtitle_out_max_size);
@@ -775,8 +775,8 @@ static void do_video_out(AVFormatContext *s,
avcodec_get_frame_defaults(&picture_format_temp);
avcodec_get_frame_defaults(&picture_crop_temp);
- enc = &ost->st->codec;
- dec = &ist->st->codec;
+ enc = ost->st->codec;
+ dec = ist->st->codec;
/* by default, we output a single frame */
nb_frames = 1;
@@ -1049,7 +1049,7 @@ static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
}
ti = MAXINT64;
- enc = &ost->st->codec;
+ enc = ost->st->codec;
if (enc->codec_type == CODEC_TYPE_VIDEO) {
frame_number = ost->frame_number;
fprintf(fvstats, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
@@ -1107,7 +1107,7 @@ static void print_report(AVFormatContext **output_files,
for(i=0;i<nb_ostreams;i++) {
ost = ost_table[i];
os = output_files[ost->file_index];
- enc = &ost->st->codec;
+ enc = ost->st->codec;
if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
enc->coded_frame->quality/(float)FF_QP2LAMBDA);
@@ -1220,13 +1220,13 @@ static int output_packet(AVInputStream *ist, int ist_index,
data_size = 0;
subtitle_to_free = NULL;
if (ist->decoding_needed) {
- switch(ist->st->codec.codec_type) {
+ switch(ist->st->codec->codec_type) {
case CODEC_TYPE_AUDIO:{
if(pkt)
samples= av_fast_realloc(samples, &samples_size, FFMAX(pkt->size, AVCODEC_MAX_AUDIO_FRAME_SIZE));
/* XXX: could avoid copy if PCM 16 bits with same
endianness as CPU */
- ret = avcodec_decode_audio(&ist->st->codec, samples, &data_size,
+ ret = avcodec_decode_audio(ist->st->codec, samples, &data_size,
ptr, len);
if (ret < 0)
goto fail_decode;
@@ -1240,14 +1240,14 @@ static int output_packet(AVInputStream *ist, int ist_index,
}
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);
+ (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;
+ 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,
+ ret = avcodec_decode_video(ist->st->codec,
&picture, &got_picture, ptr, len);
ist->st->quality= picture.quality;
if (ret < 0)
@@ -1256,15 +1256,15 @@ static int output_packet(AVInputStream *ist, int ist_index,
/* no picture yet */
goto discard_packet;
}
- if (ist->st->codec.time_base.num != 0) {
+ if (ist->st->codec->time_base.num != 0) {
ist->next_pts += ((int64_t)AV_TIME_BASE *
- ist->st->codec.time_base.num) /
- ist->st->codec.time_base.den;
+ ist->st->codec->time_base.num) /
+ ist->st->codec->time_base.den;
}
len = 0;
break;
case CODEC_TYPE_SUBTITLE:
- ret = avcodec_decode_subtitle(&ist->st->codec,
+ ret = avcodec_decode_subtitle(ist->st->codec,
&subtitle, &got_subtitle, ptr, len);
if (ret < 0)
goto fail_decode;
@@ -1278,16 +1278,16 @@ static int output_packet(AVInputStream *ist, int ist_index,
goto fail_decode;
}
} else {
- switch(ist->st->codec.codec_type) {
+ 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 * ist->st->codec.channels);
+ ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
+ (ist->st->codec->sample_rate * ist->st->codec->channels);
break;
case CODEC_TYPE_VIDEO:
- if (ist->st->codec.time_base.num != 0) {
+ if (ist->st->codec->time_base.num != 0) {
ist->next_pts += ((int64_t)AV_TIME_BASE *
- ist->st->codec.time_base.num) /
- ist->st->codec.time_base.den;
+ ist->st->codec->time_base.num) /
+ ist->st->codec->time_base.den;
}
break;
}
@@ -1298,13 +1298,13 @@ static int output_packet(AVInputStream *ist, int ist_index,
}
buffer_to_free = NULL;
- if (ist->st->codec.codec_type == CODEC_TYPE_VIDEO) {
+ 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 (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
if (audio_volume != 256) {
short *volp;
volp = samples;
@@ -1318,8 +1318,8 @@ static int output_packet(AVInputStream *ist, int ist_index,
}
/* frame rate emulation */
- if (ist->st->codec.rate_emu) {
- int64_t pts = av_rescale((int64_t) ist->frame * ist->st->codec.time_base.num, 1000000, ist->st->codec.time_base.den);
+ if (ist->st->codec->rate_emu) {
+ int64_t pts = av_rescale((int64_t) ist->frame * ist->st->codec->time_base.num, 1000000, ist->st->codec->time_base.den);
int64_t now = av_gettime() - ist->start;
if (pts > now)
usleep(pts - now);
@@ -1331,8 +1331,8 @@ static int output_packet(AVInputStream *ist, int ist_index,
/* mpeg PTS deordering : if it is a P or I frame, the PTS
is the one of the next displayed one */
/* XXX: add mpeg4 too ? */
- if (ist->st->codec.codec_id == CODEC_ID_MPEG1VIDEO) {
- if (ist->st->codec.pict_type != B_TYPE) {
+ if (ist->st->codec->codec_id == CODEC_ID_MPEG1VIDEO) {
+ if (ist->st->codec->pict_type != B_TYPE) {
int64_t tmp;
tmp = ist->last_ip_pts;
ist->last_ip_pts = ist->frac_pts.val;
@@ -1360,7 +1360,7 @@ static int output_packet(AVInputStream *ist, int ist_index,
//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) {
+ switch(ost->st->codec->codec_type) {
case CODEC_TYPE_AUDIO:
do_audio_out(os, ost, ist, data_buf, data_size);
break;
@@ -1386,12 +1386,12 @@ static int output_packet(AVInputStream *ist, int ist_index,
/* force the input stream PTS */
avcodec_get_frame_defaults(&avframe);
- ost->st->codec.coded_frame= &avframe;
+ ost->st->codec->coded_frame= &avframe;
avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
- if(ost->st->codec.codec_type == CODEC_TYPE_AUDIO)
+ if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
audio_size += data_size;
- else if (ost->st->codec.codec_type == CODEC_TYPE_VIDEO) {
+ else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
video_size += data_size;
ost->sync_opts++;
}
@@ -1411,10 +1411,10 @@ static int output_packet(AVInputStream *ist, int ist_index,
opkt.dts= av_rescale_q(dts + input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ost->st->time_base);
}
opkt.flags= pkt->flags;
- if(av_parser_change(ist->st->parser, &ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
+ 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;
av_interleaved_write_frame(os, &opkt);
- ost->st->codec.frame_number++;
+ ost->st->codec->frame_number++;
ost->frame_number++;
av_free_packet(&opkt);
}
@@ -1441,12 +1441,12 @@ static int output_packet(AVInputStream *ist, int ist_index,
for(i=0;i<nb_ostreams;i++) {
ost = ost_table[i];
if (ost->source_index == ist_index) {
- AVCodecContext *enc= &ost->st->codec;
+ AVCodecContext *enc= ost->st->codec;
os = output_files[ost->file_index];
- if(ost->st->codec.codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
+ 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))
+ if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
continue;
if (ost->encoding_needed) {
@@ -1455,7 +1455,7 @@ static int output_packet(AVInputStream *ist, int ist_index,
av_init_packet(&pkt);
pkt.stream_index= ost->index;
- switch(ost->st->codec.codec_type) {
+ switch(ost->st->codec->codec_type) {
case CODEC_TYPE_AUDIO:
ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
audio_size += ret;
@@ -1546,7 +1546,7 @@ static int av_encode(AVFormatContext **output_files,
ist->discard = 1; /* the stream is discarded by default
(changed later) */
- if (ist->st->codec.rate_emu) {
+ if (ist->st->codec->rate_emu) {
ist->start = av_gettime();
ist->frame = 0;
}
@@ -1607,7 +1607,7 @@ static int av_encode(AVFormatContext **output_files,
stream_maps[n-1].stream_index;
/* Sanity check that the stream types match */
- if (ist_table[ost->source_index]->st->codec.codec_type != ost->st->codec.codec_type) {
+ if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
stream_maps[n-1].file_index, stream_maps[n-1].stream_index,
ost->file_index, ost->index);
@@ -1620,7 +1620,7 @@ static int av_encode(AVFormatContext **output_files,
for(j=0;j<nb_istreams;j++) {
ist = ist_table[j];
if (ist->discard &&
- ist->st->codec.codec_type == ost->st->codec.codec_type) {
+ ist->st->codec->codec_type == ost->st->codec->codec_type) {
ost->source_index = j;
found = 1;
break;
@@ -1631,7 +1631,7 @@ static int av_encode(AVFormatContext **output_files,
/* 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) {
+ if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
ost->source_index = j;
found = 1;
}
@@ -1656,8 +1656,8 @@ static int av_encode(AVFormatContext **output_files,
ost = ost_table[i];
ist = ist_table[ost->source_index];
- codec = &ost->st->codec;
- icodec = &ist->st->codec;
+ codec = ost->st->codec;
+ icodec = ist->st->codec;
if (ost->st->stream_copy) {
/* if stream_copy is selected, no need to decode or encode */
@@ -1773,8 +1773,8 @@ static int av_encode(AVFormatContext **output_files,
goto fail;
ost->img_resample_ctx = img_resample_full_init(
- ost->st->codec.width, ost->st->codec.height,
- ist->st->codec.width, ist->st->codec.height,
+ ost->st->codec->width, ost->st->codec->height,
+ ist->st->codec->width, ist->st->codec->height,
frame_topBand, frame_bottomBand,
frame_leftBand, frame_rightBand,
frame_padtop, frame_padbottom,
@@ -1877,18 +1877,18 @@ static int av_encode(AVFormatContext **output_files,
ost = ost_table[i];
if (ost->encoding_needed) {
AVCodec *codec;
- codec = avcodec_find_encoder(ost->st->codec.codec_id);
+ 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);
exit(1);
}
- if (avcodec_open(&ost->st->codec, codec) < 0) {
+ 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);
exit(1);
}
- extra_size += ost->st->codec.extradata_size;
+ extra_size += ost->st->codec->extradata_size;
}
}
@@ -1897,19 +1897,19 @@ static int av_encode(AVFormatContext **output_files,
ist = ist_table[i];
if (ist->decoding_needed) {
AVCodec *codec;
- codec = avcodec_find_decoder(ist->st->codec.codec_id);
+ 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);
+ ist->st->codec->codec_id, ist->file_index, ist->index);
exit(1);
}
- if (avcodec_open(&ist->st->codec, codec) < 0) {
+ 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);
exit(1);
}
- //if (ist->st->codec.codec_type == CODEC_TYPE_VIDEO)
- // ist->st->codec.flags |= CODEC_FLAG_REPEAT_FIELD;
+ //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
+ // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
}
}
@@ -2010,8 +2010,8 @@ static int av_encode(AVFormatContext **output_files,
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);
+ 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;
@@ -2025,7 +2025,7 @@ static int av_encode(AVFormatContext **output_files,
if(!input_sync) file_index = ist->file_index;
}
}
- if(ost->frame_number >= max_frames[ost->st->codec.codec_type]){
+ if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
file_index= -1;
break;
}
@@ -2067,7 +2067,7 @@ static int av_encode(AVFormatContext **output_files,
if (ist->discard)
goto discard_packet;
-// fprintf(stderr, "next:%lld dts:%lld off:%lld %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec.codec_type);
+// fprintf(stderr, "next:%lld dts:%lld off:%lld %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) {
int64_t delta= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q) - ist->next_pts;
if(ABS(delta) > 10LL*AV_TIME_BASE && !copy_ts){
@@ -2123,8 +2123,8 @@ static int av_encode(AVFormatContext **output_files,
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);
+ av_freep(&ost->st->codec->stats_in);
+ avcodec_close(ost->st->codec);
}
}
@@ -2132,7 +2132,7 @@ static int av_encode(AVFormatContext **output_files,
for(i=0;i<nb_istreams;i++) {
ist = ist_table[i];
if (ist->decoding_needed) {
- avcodec_close(&ist->st->codec);
+ avcodec_close(ist->st->codec);
}
}
@@ -3058,7 +3058,7 @@ static void opt_input_file(const char *filename)
/* update the current parameters so that they match the one of the input stream */
for(i=0;i<ic->nb_streams;i++) {
- AVCodecContext *enc = &ic->streams[i]->codec;
+ AVCodecContext *enc = ic->streams[i]->codec;
#if defined(HAVE_THREADS)
if(thread_count>1)
avcodec_thread_init(enc, thread_count);
@@ -3154,7 +3154,7 @@ static void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
for(j=0;j<nb_input_files;j++) {
ic = input_files[j];
for(i=0;i<ic->nb_streams;i++) {
- AVCodecContext *enc = &ic->streams[i]->codec;
+ AVCodecContext *enc = ic->streams[i]->codec;
switch(enc->codec_type) {
case CODEC_TYPE_AUDIO:
has_audio = 1;
@@ -3187,10 +3187,10 @@ static void new_video_stream(AVFormatContext *oc)
}
#if defined(HAVE_THREADS)
if(thread_count>1)
- avcodec_thread_init(&st->codec, thread_count);
+ avcodec_thread_init(st->codec, thread_count);
#endif
- video_enc = &st->codec;
+ video_enc = st->codec;
if(video_codec_tag)
video_enc->codec_tag= video_codec_tag;
@@ -3473,10 +3473,10 @@ static void new_audio_stream(AVFormatContext *oc)
}
#if defined(HAVE_THREADS)
if(thread_count>1)
- avcodec_thread_init(&st->codec, thread_count);
+ avcodec_thread_init(st->codec, thread_count);
#endif
- audio_enc = &st->codec;
+ audio_enc = st->codec;
audio_enc->codec_type = CODEC_TYPE_AUDIO;
if(audio_codec_tag)
@@ -3535,7 +3535,7 @@ static void opt_new_subtitle_stream(void)
exit(1);
}
- subtitle_enc = &st->codec;
+ subtitle_enc = st->codec;
subtitle_enc->codec_type = CODEC_TYPE_SUBTITLE;
if (subtitle_stream_copy) {
st->stream_copy = 1;
@@ -3732,7 +3732,7 @@ static void prepare_grab(void)
for(j=0;j<nb_output_files;j++) {
oc = output_files[j];
for(i=0;i<oc->nb_streams;i++) {
- AVCodecContext *enc = &oc->streams[i]->codec;
+ AVCodecContext *enc = oc->streams[i]->codec;
switch(enc->codec_type) {
case CODEC_TYPE_AUDIO:
if (enc->sample_rate > ap->sample_rate)
@@ -4041,7 +4041,7 @@ static void opt_target(const char *arg)
int i, j;
for(j = 0; j < nb_input_files; j++) {
for(i = 0; i < input_files[j]->nb_streams; i++) {
- AVCodecContext *c = &input_files[j]->streams[i]->codec;
+ AVCodecContext *c = input_files[j]->streams[i]->codec;
if(c->codec_type != CODEC_TYPE_VIDEO)
continue;
fr = c->time_base.den * 1000 / c->time_base.num;