static int ea_read_header(AVFormatContext *s, AVFormatParameters *ap) { EaDemuxContext *ea = s->priv_data; AVStream *st; if (!process_ea_header(s)) return AVERROR(EIO); if (ea->time_base.num && ea->time_base.den) { /* initialize the video decoder stream */ st = av_new_stream(s, 0); if (!st) return AVERROR(ENOMEM); ea->video_stream_index = st->index; st->codec->codec_type = CODEC_TYPE_VIDEO; st->codec->codec_id = ea->video_codec; st->codec->codec_tag = 0; /* no fourcc */ st->codec->time_base = ea->time_base; } if (ea->audio_codec) { /* initialize the audio decoder stream */ st = av_new_stream(s, 0); if (!st) return AVERROR(ENOMEM); av_set_pts_info(st, 33, 1, ea->sample_rate); st->codec->codec_type = CODEC_TYPE_AUDIO; st->codec->codec_id = ea->audio_codec; st->codec->codec_tag = 0; /* no tag */ st->codec->channels = ea->num_channels; st->codec->sample_rate = ea->sample_rate; st->codec->bits_per_sample = ea->bytes * 8; st->codec->bit_rate = st->codec->channels * st->codec->sample_rate * st->codec->bits_per_sample / 4; st->codec->block_align = st->codec->channels*st->codec->bits_per_sample; ea->audio_stream_index = st->index; ea->audio_frame_counter = 0; } return 1; }