diff options
Diffstat (limited to 'libavcodec/h264_mp4toannexb_bsf.c')
-rw-r--r-- | libavcodec/h264_mp4toannexb_bsf.c | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/libavcodec/h264_mp4toannexb_bsf.c b/libavcodec/h264_mp4toannexb_bsf.c index eceebeb..48e085e 100644 --- a/libavcodec/h264_mp4toannexb_bsf.c +++ b/libavcodec/h264_mp4toannexb_bsf.c @@ -2,20 +2,20 @@ * H.264 MP4 to Annex B byte stream format filter * Copyright (c) 2007 Benoit Fouet <benoit.fouet@free.fr> * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg 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. * - * Libav is distributed in the hope that it will be useful, + * FFmpeg 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -63,6 +63,7 @@ static int h264_mp4toannexb_filter(AVBitStreamFilterContext *bsfc, int32_t nal_size; uint32_t cumul_size = 0; const uint8_t *buf_end = buf + buf_size; + int ret = AVERROR(EINVAL); /* nothing to filter */ if (!avctx->extradata || avctx->extradata_size < 6) { @@ -87,11 +88,7 @@ static int h264_mp4toannexb_filter(AVBitStreamFilterContext *bsfc, /* retrieve sps and pps unit(s) */ unit_nb = *extradata++ & 0x1f; /* number of sps unit(s) */ if (!unit_nb) { - unit_nb = *extradata++; /* number of pps unit(s) */ - sps_done++; - - if (unit_nb) - pps_seen = 1; + goto pps; } else { sps_seen = 1; } @@ -115,7 +112,7 @@ static int h264_mp4toannexb_filter(AVBitStreamFilterContext *bsfc, memcpy(out+total_size-unit_size-4, nalu_header, 4); memcpy(out+total_size-unit_size, extradata+2, unit_size); extradata += 2+unit_size; - +pps: if (!unit_nb && !sps_done++) { unit_nb = *extradata++; /* number of pps unit(s) */ if (unit_nb) @@ -141,6 +138,7 @@ static int h264_mp4toannexb_filter(AVBitStreamFilterContext *bsfc, *poutbuf_size = 0; *poutbuf = NULL; do { + ret= AVERROR(EINVAL); if (buf + ctx->length_size > buf_end) goto fail; @@ -159,15 +157,15 @@ static int h264_mp4toannexb_filter(AVBitStreamFilterContext *bsfc, /* prepend only to the first type 5 NAL unit of an IDR picture */ if (ctx->first_idr && unit_type == 5) { - if (alloc_and_copy(poutbuf, poutbuf_size, + if ((ret=alloc_and_copy(poutbuf, poutbuf_size, avctx->extradata, avctx->extradata_size, - buf, nal_size) < 0) + buf, nal_size)) < 0) goto fail; ctx->first_idr = 0; } else { - if (alloc_and_copy(poutbuf, poutbuf_size, + if ((ret=alloc_and_copy(poutbuf, poutbuf_size, NULL, 0, - buf, nal_size) < 0) + buf, nal_size)) < 0) goto fail; if (!ctx->first_idr && unit_type == 1) ctx->first_idr = 1; @@ -182,7 +180,7 @@ static int h264_mp4toannexb_filter(AVBitStreamFilterContext *bsfc, fail: av_freep(poutbuf); *poutbuf_size = 0; - return AVERROR(EINVAL); + return ret; } AVBitStreamFilter ff_h264_mp4toannexb_bsf = { |