* H.264 MP4 to Annex B byte stream format filter
* Copyright (c) 2007 Benoit Fouet <benoit.fouet@free.fr>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
if (!ctx->extradata_parsed) {
uint16_t unit_size;
uint64_t total_size = 0;
- uint8_t *out = NULL, unit_nb, sps_done = 0;
+ uint8_t *out = NULL, unit_nb, sps_done = 0, sps_seen = 0, pps_seen = 0;
const uint8_t *extradata = avctx->extradata+4;
static const uint8_t nalu_header[4] = {0, 0, 0, 1};
if (!unit_nb) {
unit_nb = *extradata++; /* number of pps unit(s) */
sps_done++;
+
+ if (unit_nb)
+ pps_seen = 1;
+ } else {
+ sps_seen = 1;
}
+
while (unit_nb--) {
void *tmp;
memcpy(out+total_size-unit_size, extradata+2, unit_size);
extradata += 2+unit_size;
- if (!unit_nb && !sps_done++)
+ if (!unit_nb && !sps_done++) {
unit_nb = *extradata++; /* number of pps unit(s) */
+ if (unit_nb)
+ pps_seen = 1;
+ }
}
- memset(out + total_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+ if(out)
+ memset(out + total_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+
+ if (!sps_seen)
+ av_log(avctx, AV_LOG_WARNING, "Warning: SPS NALU missing or invalid. The resulting stream may not play.\n");
+ if (!pps_seen)
+ av_log(avctx, AV_LOG_WARNING, "Warning: PPS NALU missing or invalid. The resulting stream may not play.\n");
+
av_free(avctx->extradata);
avctx->extradata = out;
avctx->extradata_size = total_size;
return AVERROR(EINVAL);
}
-AVBitStreamFilter h264_mp4toannexb_bsf = {
+AVBitStreamFilter ff_h264_mp4toannexb_bsf = {
"h264_mp4toannexb",
sizeof(H264BSFContext),
h264_mp4toannexb_filter,
};
-