uint32_t bufferSizeDB;
uint32_t maxBitrate;
uint32_t avgBitrate;
+ int is_vbr;
m4af_sample_entry_t *sample_table;
uint32_t num_samples;
return ctx->last_error;
}
+void m4af_set_vbr_mode(m4af_ctx_t *ctx, uint32_t track_idx, int is_vbr)
+{
+ m4af_track_t *track = &ctx->track[track_idx];
+ track->is_vbr = is_vbr;
+}
+
void m4af_set_priming(m4af_ctx_t *ctx, uint32_t track_idx,
uint32_t encoder_delay, uint32_t padding)
{
, 2);
m4af_write24(ctx, track->bufferSizeDB);
m4af_write32(ctx, track->maxBitrate);
-#if 0
- m4af_write32(ctx, track->avgBitrate);
-#else
- m4af_write32(ctx, 0);
-#endif
+ m4af_write32(ctx, track->is_vbr ? 0: track->avgBitrate);
/* DecoderSpecificInfo */
m4af_write_descriptor(ctx, 5, track->decSpecificInfoSize);
m4af_write(ctx, track->decSpecificInfo, track->decSpecificInfoSize);
static
void m4af_write_sgpd_box(m4af_ctx_t *ctx, uint32_t track_idx)
{
- m4af_track_t *track = &ctx->track[track_idx];
m4af_write(ctx,
- "\0\0\0\032" /* size */
+ "\0\0\0\026" /* size: 22 */
"sgpd" /* type */
- "\001" /* version */
+ "\0" /* version */
"\0\0\0" /* flags */
"roll" /* grouping_type */
- "\0\0\0\002" /* default_length: 2 */
"\0\0\0\001" /* entry_count: 1 */
"\377\377" /* payload_data: -1 */
- , 26);
+ , 22);
}
static
static
void m4af_write_edts_box(m4af_ctx_t *ctx, uint32_t track_idx)
{
- m4af_track_t *track = &ctx->track[track_idx];
int64_t pos = m4af_tell(ctx);
m4af_write(ctx, "\0\0\0\0edts", 8);
m4af_write_elst_box(ctx, track_idx);