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ffmpeg: rescue poor abused start_time global. 

Keep a per-OutputFile instance of it, thus making -ss work with multiple
output files.
This commit is contained in:
Anton Khirnov 2011-08-30 15:32:12 +02:00 committed by Michael Niedermayer
parent 08890d355e
commit d4d5a95055
1 changed files with 11 additions and 5 deletions
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16
ffmpeg.c
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@ -330,6 +330,7 @@ typedef struct OutputFile {
AVDictionary *opts;
int ost_index; /* index of the first stream in output_streams */
int64_t recording_time; /* desired length of the resulting file in microseconds */
int64_t start_time; /* start time in microseconds */
} OutputFile;
static InputStream *input_streams = NULL;
@ -688,7 +689,8 @@ static double
get_sync_ipts(const OutputStream *ost)
{
const InputStream *ist = ost->sync_ist;
return (double)(ist->pts - start_time)/AV_TIME_BASE;
OutputFile *of = &output_files[ost->file_index];
return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
}
static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
@ -1640,8 +1642,7 @@ static int output_packet(InputStream *ist, int ist_index,
}
/* 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++) {
for (i = 0; i < nb_ostreams; i++) {
OutputFile *of = &output_files[ost_table[i].file_index];
int frame_size;
@ -1649,8 +1650,11 @@ static int output_packet(InputStream *ist, int ist_index,
if (ost->source_index != ist_index)
continue;
if (of->start_time && ist->pts < of->start_time)
continue;
if (of->recording_time != INT64_MAX &&
av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + start_time,
av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
(AVRational){1, 1000000}) >= 0) {
ost->is_past_recording_time = 1;
continue;
@ -1702,7 +1706,7 @@ static int output_packet(InputStream *ist, int ist_index,
AVFrame avframe; //FIXME/XXX remove this
AVPicture pict;
AVPacket opkt;
int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
av_init_packet(&opkt);
@ -3724,6 +3728,7 @@ static int opt_output_file(const char *opt, const char *filename)
output_files[nb_output_files - 1].ctx = oc;
output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
output_files[nb_output_files - 1].recording_time = recording_time;
output_files[nb_output_files - 1].start_time = start_time;
av_dict_copy(&output_files[nb_output_files - 1].opts, format_opts, 0);
/* check filename in case of an image number is expected */
@ -3854,6 +3859,7 @@ static int opt_output_file(const char *opt, const char *filename)
audio_sample_fmt = AV_SAMPLE_FMT_NONE;
chapters_input_file = INT_MAX;
recording_time = INT64_MAX;
start_time = 0;
av_freep(&meta_data_maps);
nb_meta_data_maps = 0;