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Codecs: mp4: Fix seek in very large files

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Samples count requires 64 bit

Change-Id: Ia54be57d7d15b3db19dbc29ff8a06671594abb4b
This commit is contained in:
roman.artiukhin 2023-09-05 01:19:38 +03:00 • committed by Solomon Peachy
parent d2f7777f7a
commit 27aa95afcb
4 changed files with 11 additions and 10 deletions
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11
lib/rbcodec/codecs/libm4a/m4a.c
View file

@ -137,13 +137,14 @@ int m4a_check_sample_offset(demux_res_t *demux_res, uint32_t frame, uint32_t *st
/* Seek to desired sound sample location. Return 1 on success (and modify
* sound_samples_done and current_sample), 0 if failed. */
unsigned int m4a_seek(demux_res_t* demux_res, stream_t* stream,
uint32_t sound_sample_loc, uint32_t* sound_samples_done,
uint64_t sound_sample_loc, uint64_t* sound_samples_done,
int* current_sample)
{
uint32_t i, sample_i, sound_sample_i;
uint32_t i, sample_i;
uint32_t time, time_cnt, time_dur;
uint32_t chunk, chunk_first_sample;
uint32_t offset;
uint64_t sound_sample_i;
time_to_sample_t *tts_tab = demux_res->time_to_sample;
sample_offset_t *tco_tab = demux_res->lookup_table;
uint32_t *tsz_tab = demux_res->sample_byte_sizes;
@ -208,7 +209,7 @@ unsigned int m4a_seek(demux_res_t* demux_res, stream_t* stream,
DEBUGF("seek chunk=%lu, sample=%lu, soundsample=%lu, offset=%lu\n",
(unsigned long)chunk, (unsigned long)chunk_first_sample,
(unsigned long)sound_sample_i, (unsigned long)offset);
sound_sample_i, (unsigned long)offset);
if (tsz_tab) {
/* We have a sample-to-bytes table available so we can do accurate
@ -260,13 +261,13 @@ unsigned int m4a_seek(demux_res_t* demux_res, stream_t* stream,
* calculate the sound_samples_done value.
*/
unsigned int m4a_seek_raw(demux_res_t* demux_res, stream_t* stream,
uint32_t file_loc, uint32_t* sound_samples_done,
uint32_t file_loc, uint64_t* sound_samples_done,
int* current_sample)
{
uint32_t i;
uint32_t chunk_sample = 0;
uint32_t total_samples = 0;
uint32_t new_sound_sample = 0;
uint64_t new_sound_sample = 0;
uint32_t tmp_dur;
uint32_t tmp_cnt;
uint32_t new_pos;

4
lib/rbcodec/codecs/libm4a/m4a.h
View file

@ -130,10 +130,10 @@ int stream_eof(stream_t *stream);
void stream_create(stream_t *stream,struct codec_api* ci);
unsigned int get_sample_offset(demux_res_t *demux_res, uint32_t sample);
unsigned int m4a_seek (demux_res_t* demux_res, stream_t* stream,
uint32_t sound_sample_loc, uint32_t* sound_samples_done,
uint64_t sound_sample_loc, uint64_t* sound_samples_done,
int* current_sample);
unsigned int m4a_seek_raw (demux_res_t* demux_res, stream_t* stream,
uint32_t file_loc, uint32_t* sound_samples_done, int* current_sample);
uint32_t file_loc, uint64_t* sound_samples_done, int* current_sample);
int m4a_check_sample_offset(demux_res_t *demux_res, uint32_t frame, uint32_t *start);
#endif /* STREAM_H */