#include "avcodec.h"
#include "bsf.h"
+#include "h264.h"
typedef struct H264BSFContext {
int32_t sps_offset;
if (nal_size > buf_end - buf || nal_size < 0)
goto fail;
- if (unit_type == 7)
+ if (unit_type == H264_NAL_SPS)
s->idr_sps_seen = s->new_idr = 1;
- else if (unit_type == 8) {
+ else if (unit_type == H264_NAL_PPS) {
s->idr_pps_seen = s->new_idr = 1;
/* if SPS has not been seen yet, prepend the AVCC one to PPS */
if (!s->idr_sps_seen) {
/* if this is a new IDR picture following an IDR picture, reset the idr flag.
* Just check first_mb_in_slice to be 0 as this is the simplest solution.
* This could be checking idr_pic_id instead, but would complexify the parsing. */
- if (!s->new_idr && unit_type == 5 && (buf[1] & 0x80))
+ if (!s->new_idr && unit_type == H264_NAL_IDR_SLICE && (buf[1] & 0x80))
s->new_idr = 1;
/* prepend only to the first type 5 NAL unit of an IDR picture, if no sps/pps are already present */
- if (s->new_idr && unit_type == 5 && !s->idr_sps_seen && !s->idr_pps_seen) {
+ if (s->new_idr && unit_type == H264_NAL_IDR_SLICE && !s->idr_sps_seen && !s->idr_pps_seen) {
if ((ret=alloc_and_copy(out,
ctx->par_out->extradata, ctx->par_out->extradata_size,
buf, nal_size, 1)) < 0)
goto fail;
s->new_idr = 0;
/* if only SPS has been seen, also insert PPS */
- } else if (s->new_idr && unit_type == 5 && s->idr_sps_seen && !s->idr_pps_seen) {
+ } else if (s->new_idr && unit_type == H264_NAL_IDR_SLICE && s->idr_sps_seen && !s->idr_pps_seen) {
if (s->pps_offset == -1) {
av_log(ctx, AV_LOG_WARNING, "PPS not present in the stream, nor in AVCC, stream may be unreadable\n");
if ((ret = alloc_and_copy(out, NULL, 0, buf, nal_size, 0)) < 0)
buf, nal_size, 1)) < 0)
goto fail;
} else {
- if ((ret=alloc_and_copy(out, NULL, 0, buf, nal_size, unit_type == 7 || unit_type == 8)) < 0)
+ if ((ret=alloc_and_copy(out, NULL, 0, buf, nal_size, unit_type == H264_NAL_SPS || unit_type == H264_NAL_PPS)) < 0)
goto fail;
- if (!s->new_idr && unit_type == 1) {
+ if (!s->new_idr && unit_type == H264_NAL_SLICE) {
s->new_idr = 1;
s->idr_sps_seen = 0;
s->idr_pps_seen = 0;
return ret;
}
+static void h264_mp4toannexb_flush(AVBSFContext *ctx)
+{
+ H264BSFContext *s = ctx->priv_data;
+
+ s->idr_sps_seen = 0;
+ s->idr_pps_seen = 0;
+ s->new_idr = s->extradata_parsed;
+}
+
static const enum AVCodecID codec_ids[] = {
AV_CODEC_ID_H264, AV_CODEC_ID_NONE,
};
.priv_data_size = sizeof(H264BSFContext),
.init = h264_mp4toannexb_init,
.filter = h264_mp4toannexb_filter,
+ .flush = h264_mp4toannexb_flush,
.codec_ids = codec_ids,
};