return END_NOT_FOUND;
}
-static int decode_chunks(AVCodecContext *avctx,
- AVFrame *picture, int *data_size,
- const uint8_t *buf, int buf_size);
-
-/* handle buffering and image synchronisation */
-static int mpeg_decode_frame(AVCodecContext *avctx,
- void *data, int *data_size,
- AVPacket *avpkt)
-{
- const uint8_t *buf = avpkt->data;
- int buf_size = avpkt->size;
- Mpeg1Context *s = avctx->priv_data;
- AVFrame *picture = data;
- MpegEncContext *s2 = &s->mpeg_enc_ctx;
- av_dlog(avctx, "fill_buffer\n");
-
- if (buf_size == 0 || (buf_size == 4 && AV_RB32(buf) == SEQ_END_CODE)) {
- /* special case for last picture */
- if (s2->low_delay == 0 && s2->next_picture_ptr) {
- *picture = s2->next_picture_ptr->f;
- s2->next_picture_ptr = NULL;
-
- *data_size = sizeof(AVFrame);
- }
- return buf_size;
- }
-
- if (s2->flags & CODEC_FLAG_TRUNCATED) {
- int next = ff_mpeg1_find_frame_end(&s2->parse_context, buf, buf_size, NULL);
-
- if (ff_combine_frame(&s2->parse_context, next, (const uint8_t **)&buf, &buf_size) < 0)
- return buf_size;
- }
-
- s2->codec_tag = avpriv_toupper4(avctx->codec_tag);
- if (s->mpeg_enc_ctx_allocated == 0 && ( s2->codec_tag == AV_RL32("VCR2")
- || s2->codec_tag == AV_RL32("BW10")
- ))
- vcr2_init_sequence(avctx);
-
- s->slice_count = 0;
-
- if (avctx->extradata && !s->parsed_extra) {
- int ret = decode_chunks(avctx, picture, data_size, avctx->extradata, avctx->extradata_size);
- if(*data_size) {
- av_log(avctx, AV_LOG_ERROR, "picture in extradata\n");
- *data_size = 0;
- }
- s->parsed_extra = 1;
- if (ret < 0 && (avctx->err_recognition & AV_EF_EXPLODE))
- return ret;
- }
-
- return decode_chunks(avctx, picture, data_size, buf, buf_size);
-}
-
static int decode_chunks(AVCodecContext *avctx,
AVFrame *picture, int *data_size,
const uint8_t *buf, int buf_size)
}
}
+static int mpeg_decode_frame(AVCodecContext *avctx,
+ void *data, int *data_size,
+ AVPacket *avpkt)
+{
+ const uint8_t *buf = avpkt->data;
+ int buf_size = avpkt->size;
+ Mpeg1Context *s = avctx->priv_data;
+ AVFrame *picture = data;
+ MpegEncContext *s2 = &s->mpeg_enc_ctx;
+ av_dlog(avctx, "fill_buffer\n");
+
+ if (buf_size == 0 || (buf_size == 4 && AV_RB32(buf) == SEQ_END_CODE)) {
+ /* special case for last picture */
+ if (s2->low_delay == 0 && s2->next_picture_ptr) {
+ *picture = s2->next_picture_ptr->f;
+ s2->next_picture_ptr = NULL;
+
+ *data_size = sizeof(AVFrame);
+ }
+ return buf_size;
+ }
+
+ if (s2->flags & CODEC_FLAG_TRUNCATED) {
+ int next = ff_mpeg1_find_frame_end(&s2->parse_context, buf, buf_size, NULL);
+
+ if (ff_combine_frame(&s2->parse_context, next, (const uint8_t **)&buf, &buf_size) < 0)
+ return buf_size;
+ }
+
+ s2->codec_tag = avpriv_toupper4(avctx->codec_tag);
+ if (s->mpeg_enc_ctx_allocated == 0 && ( s2->codec_tag == AV_RL32("VCR2")
+ || s2->codec_tag == AV_RL32("BW10")
+ ))
+ vcr2_init_sequence(avctx);
+
+ s->slice_count = 0;
+
+ if (avctx->extradata && !s->parsed_extra) {
+ int ret = decode_chunks(avctx, picture, data_size, avctx->extradata, avctx->extradata_size);
+ if(*data_size) {
+ av_log(avctx, AV_LOG_ERROR, "picture in extradata\n");
+ *data_size = 0;
+ }
+ s->parsed_extra = 1;
+ if (ret < 0 && (avctx->err_recognition & AV_EF_EXPLODE))
+ return ret;
+ }
+
+ return decode_chunks(avctx, picture, data_size, buf, buf_size);
+}
+
+
static void flush(AVCodecContext *avctx)
{
Mpeg1Context *s = avctx->priv_data;