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Merge commit '46c477c2a14b04a63ab11d31003b48fab6146a96' into release/2.2

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* commit '46c477c2a14b04a63ab11d31003b48fab6146a96':
  Check mp3 header before calling avpriv_mpegaudio_decode_header().

Conflicts:
	libavformat/mp3enc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2014-07-14 22:26:06 +02:00
parent 00049f193d 46c477c2a1
commit 0d90143972
2 changed files with 17 additions and 11 deletions
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8
libavcodec/libmp3lame.c
View File

@@ -183,6 +183,7 @@ static int mp3lame_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
MPADecodeHeader hdr;
int len, ret, ch;
int lame_result;
uint32_t h;
if (frame) {
switch (avctx->sample_fmt) {
@@ -238,7 +239,12 @@ static int mp3lame_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
determine the frame size. */
if (s->buffer_index < 4)
return 0;
if (avpriv_mpegaudio_decode_header(&hdr, AV_RB32(s->buffer))) {
h = AV_RB32(s->buffer);
if (ff_mpa_check_header(h) < 0) {
av_log(avctx, AV_LOG_ERROR, "Invalid mp3 header at start of buffer\n");
return AVERROR_BUG;
}
if (avpriv_mpegaudio_decode_header(&hdr, h)) {
av_log(avctx, AV_LOG_ERROR, "free format output not supported\n");
return -1;
}

20
libavformat/mp3enc.c
View File

@@ -262,19 +262,19 @@ static int mp3_write_audio_packet(AVFormatContext *s, AVPacket *pkt)
if (pkt->data && pkt->size >= 4) {
MPADecodeHeader mpah;
int av_unused base;
uint32_t head = AV_RB32(pkt->data);
uint32_t h;
if (ff_mpa_check_header(head) < 0) {
h = AV_RB32(pkt->data);
if (ff_mpa_check_header(h) == 0) {
avpriv_mpegaudio_decode_header(&mpah, h);
if (!mp3->initial_bitrate)
mp3->initial_bitrate = mpah.bit_rate;
if ((mpah.bit_rate == 0) || (mp3->initial_bitrate != mpah.bit_rate))
mp3->has_variable_bitrate = 1;
} else {
av_log(s, AV_LOG_WARNING, "Audio packet of size %d (starting with %08X...) "
"is invalid, writing it anyway.\n", pkt->size, head);
return ff_raw_write_packet(s, pkt);
"is invalid, writing it anyway.\n", pkt->size, h);
}
avpriv_mpegaudio_decode_header(&mpah, head);
if (!mp3->initial_bitrate)
mp3->initial_bitrate = mpah.bit_rate;
if ((mpah.bit_rate == 0) || (mp3->initial_bitrate != mpah.bit_rate))
mp3->has_variable_bitrate = 1;
#ifdef FILTER_VBR_HEADERS
/* filter out XING and INFO headers. */