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fixed FPS as well as crash bug when no audio chunks are present

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@4533 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
melanson 2002-02-05 03:54:08 +00:00
parent f4d53cd1f1
commit e9d210d59e
1 changed files with 21 additions and 20 deletions
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41
libmpdemux/demux_roq.c
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@ -26,7 +26,7 @@
#define CHUNK_TYPE_AUDIO 0
#define CHUNK_TYPE_VIDEO 1
#define RoQ_FPS 24
#define RoQ_FPS 30
typedef struct roq_chunk_t
{
@ -101,7 +101,6 @@ demuxer_t* demux_open_roq(demuxer_t* demuxer)
int chunk_id;
int chunk_size;
int chunk_arg;
int chunk_counter = 0;
int last_chunk_id = 0;
int largest_audio_chunk = 0;
@ -145,8 +144,8 @@ demuxer_t* demux_open_roq(demuxer_t* demuxer)
sh_video->format = mmioFOURCC('R', 'o', 'Q', 'V');
// constant frame rate
sh_video->fps = RoQ_FPS;
sh_video->frametime = 1 / RoQ_FPS;
sh_video->fps = 1000 / RoQ_FPS;
sh_video->frametime = 1 / sh_video->fps;
}
}
else if ((chunk_id == RoQ_SOUND_MONO) ||
@ -179,12 +178,12 @@ demuxer_t* demux_open_roq(demuxer_t* demuxer)
// index the chunk
roq_data->chunks = (roq_chunk_t *)realloc(roq_data->chunks,
(chunk_counter + 1) * sizeof (roq_chunk_t));
roq_data->chunks[chunk_counter].chunk_type = CHUNK_TYPE_AUDIO;
roq_data->chunks[chunk_counter].chunk_offset =
(roq_data->total_chunks + 1) * sizeof (roq_chunk_t));
roq_data->chunks[roq_data->total_chunks].chunk_type = CHUNK_TYPE_AUDIO;
roq_data->chunks[roq_data->total_chunks].chunk_offset =
stream_tell(demuxer->stream) - 8;
roq_data->chunks[chunk_counter].chunk_size = chunk_size + 8;
roq_data->chunks[chunk_counter].running_audio_sample_count =
roq_data->chunks[roq_data->total_chunks].chunk_size = chunk_size + 8;
roq_data->chunks[roq_data->total_chunks].running_audio_sample_count =
roq_data->total_audio_sample_count;
// audio housekeeping
@ -194,7 +193,7 @@ demuxer_t* demux_open_roq(demuxer_t* demuxer)
(chunk_size / sh_audio->wf->nChannels);
stream_skip(demuxer->stream, chunk_size);
chunk_counter++;
roq_data->total_chunks++;
}
else if ((chunk_id == RoQ_QUAD_CODEBOOK) ||
((chunk_id == RoQ_QUAD_VQ) && (last_chunk_id != RoQ_QUAD_CODEBOOK)))
@ -202,25 +201,25 @@ demuxer_t* demux_open_roq(demuxer_t* demuxer)
// index a new chunk if it's a codebook or quad VQ not following a
// codebook
roq_data->chunks = (roq_chunk_t *)realloc(roq_data->chunks,
(chunk_counter + 1) * sizeof (roq_chunk_t));
roq_data->chunks[chunk_counter].chunk_type = CHUNK_TYPE_VIDEO;
roq_data->chunks[chunk_counter].chunk_offset =
(roq_data->total_chunks + 1) * sizeof (roq_chunk_t));
roq_data->chunks[roq_data->total_chunks].chunk_type = CHUNK_TYPE_VIDEO;
roq_data->chunks[roq_data->total_chunks].chunk_offset =
stream_tell(demuxer->stream) - 8;
roq_data->chunks[chunk_counter].chunk_size = chunk_size + 8;
roq_data->chunks[chunk_counter].video_chunk_number =
roq_data->chunks[roq_data->total_chunks].chunk_size = chunk_size + 8;
roq_data->chunks[roq_data->total_chunks].video_chunk_number =
roq_data->total_video_chunks++;
stream_skip(demuxer->stream, chunk_size);
chunk_counter++;
roq_data->total_chunks++;
}
else if ((chunk_id == RoQ_QUAD_VQ) && (last_chunk_id == RoQ_QUAD_CODEBOOK))
{
// if it's a quad VQ chunk following a codebook chunk, extend the last
// chunk
roq_data->chunks[chunk_counter - 1].chunk_size += (chunk_size + 8);
roq_data->chunks[roq_data->total_chunks - 1].chunk_size += (chunk_size + 8);
stream_skip(demuxer->stream, chunk_size);
}
else
else if (!stream_eof(demuxer->stream))
{
mp_msg(MSGT_DECVIDEO, MSGL_WARN, "Unknown RoQ chunk ID: %04X\n", chunk_id);
}
@ -232,14 +231,16 @@ demuxer_t* demux_open_roq(demuxer_t* demuxer)
// in the DPCM encoding effectively represents 1 16-bit sample
// (store it in wf->nBlockAlign for the time being since init_audio() will
// step on it anyway)
sh_audio->wf->nBlockAlign = largest_audio_chunk * 2;
if (sh_audio)
sh_audio->wf->nBlockAlign = largest_audio_chunk * 2;
roq_data->total_chunks = chunk_counter;
roq_data->current_chunk = 0;
demuxer->priv = roq_data;
stream_reset(demuxer->stream);
sh_audio = NULL;
return demuxer;
}