Upstream version 9.38.198.0

[platform/framework/web/crosswalk.git] / src / third_party / ffmpeg / libavformat / cafenc.c

diff --git a/src/third_party/ffmpeg/libavformat/cafenc.c b/src/third_party/ffmpeg/libavformat/cafenc.c
index f94101a..1708275 100644 (file)
--- a/src/third_party/ffmpeg/libavformat/cafenc.c
+++ b/src/third_party/ffmpeg/libavformat/cafenc.c
@@ -51,7 +51,7 @@ static uint32_t codec_flags(enum AVCodecID codec_id) {
     }
 }
 
-static uint32_t samples_per_packet(enum AVCodecID codec_id, int channels) {
+static uint32_t samples_per_packet(enum AVCodecID codec_id, int channels, int block_align) {
     switch (codec_id) {
     case AV_CODEC_ID_PCM_S8:
     case AV_CODEC_ID_PCM_S16LE:
@@ -91,9 +91,9 @@ static uint32_t samples_per_packet(enum AVCodecID codec_id, int channels) {
     case AV_CODEC_ID_ALAC:
         return 4096;
     case AV_CODEC_ID_ADPCM_IMA_WAV:
-        return (1024 - 4 * channels) * 8 / (4 * channels) + 1;
+        return (block_align - 4 * channels) * 8 / (4 * channels) + 1;
     case AV_CODEC_ID_ADPCM_MS:
-        return (1024 - 7 * channels) * 2 / channels + 2;
+        return (block_align - 7 * channels) * 2 / channels + 2;
     default:
         return 0;
     }
@@ -107,6 +107,7 @@ static int caf_write_header(AVFormatContext *s)
     AVDictionaryEntry *t = NULL;
     unsigned int codec_tag = ff_codec_get_tag(ff_codec_caf_tags, enc->codec_id);
     int64_t chunk_size = 0;
+    int frame_size = enc->frame_size;
 
     if (s->nb_streams != 1) {
         av_log(s, AV_LOG_ERROR, "CAF files have exactly one stream\n");
@@ -131,8 +132,6 @@ static int caf_write_header(AVFormatContext *s)
     case AV_CODEC_ID_PCM_F32BE:
     case AV_CODEC_ID_PCM_F64LE:
     case AV_CODEC_ID_PCM_F64BE:
-    case AV_CODEC_ID_PCM_ALAW:
-    case AV_CODEC_ID_PCM_MULAW:
         codec_tag = MKTAG('l','p','c','m');
     }
 
@@ -146,6 +145,9 @@ static int caf_write_header(AVFormatContext *s)
         return AVERROR_INVALIDDATA;
     }
 
+    if (enc->codec_id != AV_CODEC_ID_MP3 || frame_size != 576)
+        frame_size = samples_per_packet(enc->codec_id, enc->channels, enc->block_align);
+
     ffio_wfourcc(pb, "caff"); //< mFileType
     avio_wb16(pb, 1);         //< mFileVersion
     avio_wb16(pb, 0);         //< mFileFlags
@@ -156,7 +158,7 @@ static int caf_write_header(AVFormatContext *s)
     avio_wl32(pb, codec_tag);                         //< mFormatID
     avio_wb32(pb, codec_flags(enc->codec_id));        //< mFormatFlags
     avio_wb32(pb, enc->block_align);                  //< mBytesPerPacket
-    avio_wb32(pb, samples_per_packet(enc->codec_id, enc->channels)); //< mFramesPerPacket
+    avio_wb32(pb, frame_size);                        //< mFramesPerPacket
     avio_wb32(pb, enc->channels);                     //< mChannelsPerFrame
     avio_wb32(pb, av_get_bits_per_sample(enc->codec_id)); //< mBitsPerChannel
 
@@ -257,7 +259,7 @@ static int caf_write_trailer(AVFormatContext *s)
             ffio_wfourcc(pb, "pakt");
             avio_wb64(pb, caf->size_entries_used + 24);
             avio_wb64(pb, caf->packets); ///< mNumberPackets
-            avio_wb64(pb, caf->packets * samples_per_packet(enc->codec_id, enc->channels)); ///< mNumberValidFrames
+            avio_wb64(pb, caf->packets * samples_per_packet(enc->codec_id, enc->channels, enc->block_align)); ///< mNumberValidFrames
             avio_wb32(pb, 0); ///< mPrimingFrames
             avio_wb32(pb, 0); ///< mRemainderFrames
             avio_write(pb, caf->pkt_sizes, caf->size_entries_used);