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->video_codec) {
/* 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 = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = ea->video_codec;
// parsing is necessary to make FFmpeg generate correct timestamps
if (st->codec->codec_id == CODEC_ID_MPEG2VIDEO)
st->need_parsing = AVSTREAM_PARSE_HEADERS;
st->codec->codec_tag = 0; /* no fourcc */
if (ea->time_base.num)
av_set_pts_info(st, 64, ea->time_base.num, ea->time_base.den);
st->codec->width = ea->width;
st->codec->height = ea->height;
}
if (ea->audio_codec) {
if (ea->num_channels <= 0) {
av_log(s, AV_LOG_WARNING, "Unsupported number of channels: %d\n", ea->num_channels);
ea->audio_codec = 0;
return 1;
}
if (ea->sample_rate <= 0) {
av_log(s, AV_LOG_ERROR, "Unsupported sample rate: %d\n", ea->sample_rate);
ea->audio_codec = 0;
return 1;
}
/* 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 = AVMEDIA_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_coded_sample = ea->bytes * 8;
st->codec->bit_rate = st->codec->channels * st->codec->sample_rate *
st->codec->bits_per_coded_sample / 4;
st->codec->block_align = st->codec->channels*st->codec->bits_per_coded_sample;
ea->audio_stream_index = st->index;
ea->audio_frame_counter = 0;
}
return 1;
}
static int ea_read_header(AVFormatContext *s)
{
EaDemuxContext *ea = s->priv_data;
AVStream *st;
if (process_ea_header(s)<=0)
return AVERROR(EIO);
if (init_video_stream(s, &ea->video) || init_video_stream(s, &ea->alpha))
return AVERROR(ENOMEM);
if (ea->audio_codec) {
if (ea->num_channels <= 0 || ea->num_channels > 2) {
av_log(s, AV_LOG_WARNING,
"Unsupported number of channels: %d\n", ea->num_channels);
ea->audio_codec = 0;
return 1;
}
if (ea->sample_rate <= 0) {
av_log(s, AV_LOG_ERROR,
"Unsupported sample rate: %d\n", ea->sample_rate);
ea->audio_codec = 0;
return 1;
}
if (ea->bytes <= 0) {
av_log(s, AV_LOG_ERROR,
"Invalid number of bytes per sample: %d\n", ea->bytes);
ea->audio_codec = AV_CODEC_ID_NONE;
return 1;
}
/* initialize the audio decoder stream */
st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
avpriv_set_pts_info(st, 33, 1, ea->sample_rate);
st->codec->codec_type = AVMEDIA_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_coded_sample = ea->bytes * 8;
st->codec->bit_rate = st->codec->channels *
st->codec->sample_rate *
st->codec->bits_per_coded_sample / 4;
st->codec->block_align = st->codec->channels *
st->codec->bits_per_coded_sample;
ea->audio_stream_index = st->index;
st->start_time = 0;
}
return 1;
}
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->video_codec) {
/* 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 = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = ea->video_codec;
st->codec->codec_tag = 0; /* no fourcc */
st->codec->time_base = ea->time_base;
st->codec->width = ea->width;
st->codec->height = ea->height;
}
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 = AVMEDIA_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_coded_sample = ea->bytes * 8;
st->codec->bit_rate = st->codec->channels * st->codec->sample_rate *
st->codec->bits_per_coded_sample / 4;
st->codec->block_align = st->codec->channels*st->codec->bits_per_coded_sample;
ea->audio_stream_index = st->index;
ea->audio_frame_counter = 0;
}
return 1;
}
static int ea_read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
EaDemuxContext *ea = s->priv_data;
AVStream *st;
if (!process_ea_header(s))
return AVERROR_IO;
#if 0
/* initialize the video decoder stream */
st = av_new_stream(s, 0);
if (!st)
return AVERROR_NOMEM;
av_set_pts_info(st, 33, 1, 90000);
ea->video_stream_index = st->index;
st->codec->codec_type = CODEC_TYPE_VIDEO;
st->codec->codec_id = CODEC_ID_EA_MJPEG;
st->codec->codec_tag = 0; /* no fourcc */
#endif
/* initialize the audio decoder stream */
st = av_new_stream(s, 0);
if (!st)
return AVERROR_NOMEM;
av_set_pts_info(st, 33, 1, EA_SAMPLE_RATE);
st->codec->codec_type = CODEC_TYPE_AUDIO;
st->codec->codec_id = CODEC_ID_ADPCM_EA;
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_BITS_PER_SAMPLE;
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;
}
