Merge remote branch 'qatar/master'

[ffmpeg] / libavcodec / mlp_parser.c

diff --git a/libavcodec/mlp_parser.c b/libavcodec/mlp_parser.c
index b3e5b3a1919b980bb63ab5597ceaa178104cdcf1..3b87f432ad636c9429f7fb3dc74bd57550a43567 100644 (file)
--- a/libavcodec/mlp_parser.c
+++ b/libavcodec/mlp_parser.c
@@ -20,14 +20,15 @@
  */
 
 /**
- * @file libavcodec/mlp_parser.c
+ * @file
  * MLP parser
  */
 
 #include <stdint.h>
 
 #include "libavutil/crc.h"
-#include "bitstream.h"
+#include "libavutil/audioconvert.h"
+#include "get_bits.h"
 #include "parser.h"
 #include "mlp_parser.h"
 #include "mlp.h"
@@ -42,11 +43,52 @@ static const uint8_t mlp_channels[32] = {
     5, 6, 5, 5, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 };
 
+const uint64_t ff_mlp_layout[32] = {
+    AV_CH_LAYOUT_MONO,
+    AV_CH_LAYOUT_STEREO,
+    AV_CH_LAYOUT_2_1,
+    AV_CH_LAYOUT_2_2,
+    AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY,
+    AV_CH_LAYOUT_2_1|AV_CH_LOW_FREQUENCY,
+    AV_CH_LAYOUT_2_2|AV_CH_LOW_FREQUENCY,
+    AV_CH_LAYOUT_SURROUND,
+    AV_CH_LAYOUT_4POINT0,
+    AV_CH_LAYOUT_5POINT0,
+    AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY,
+    AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY,
+    AV_CH_LAYOUT_5POINT1,
+    AV_CH_LAYOUT_4POINT0,
+    AV_CH_LAYOUT_5POINT0,
+    AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY,
+    AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY,
+    AV_CH_LAYOUT_5POINT1,
+    AV_CH_LAYOUT_2_2|AV_CH_LOW_FREQUENCY,
+    AV_CH_LAYOUT_5POINT0,
+    AV_CH_LAYOUT_5POINT1,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
 static const uint8_t thd_chancount[13] = {
 //  LR    C   LFE  LRs LRvh  LRc LRrs  Cs   Ts  LRsd  LRw  Cvh  LFE2
      2,   1,   1,   2,   2,   2,   2,   1,   1,   2,   2,   1,   1
 };
 
+static const uint64_t thd_layout[13] = {
+    AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT,                     // LR
+    AV_CH_FRONT_CENTER,                                     // C
+    AV_CH_LOW_FREQUENCY,                                    // LFE
+    AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,                       // LRs
+    AV_CH_TOP_FRONT_LEFT|AV_CH_TOP_FRONT_RIGHT,             // LRvh
+    AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,                       // LRc
+    AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT,                       // LRrs
+    AV_CH_BACK_CENTER,                                      // Cs
+    AV_CH_TOP_BACK_CENTER,                                  // Ts
+    AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT,                       // LRsd
+    AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER, // LRw
+    AV_CH_TOP_BACK_CENTER,                                  // Cvh
+    AV_CH_LOW_FREQUENCY                                     // LFE2
+};
+
 static int mlp_samplerate(int in)
 {
     if (in == 0xF)
@@ -65,6 +107,16 @@ static int truehd_channels(int chanmap)
     return channels;
 }
 
+int64_t ff_truehd_layout(int chanmap)
+{
+    int layout = 0, i;
+
+    for (i = 0; i < 13; i++)
+        layout |= thd_layout[i] * ((chanmap >> i) & 1);
+
+    return layout;
+}
+
 /** Read a major sync info header - contains high level information about
  *  the stream - sample rate, channel arrangement etc. Most of this
  *  information is not actually necessary for decoding, only for playback.
@@ -176,7 +228,9 @@ static int mlp_parse(AVCodecParserContext *s,
 
         for (i = 0; i < buf_size; i++) {
             mp->pc.state = (mp->pc.state << 8) | buf[i];
-            if ((mp->pc.state & 0xfffffffe) == 0xf8726fba) {
+            if ((mp->pc.state & 0xfffffffe) == 0xf8726fba &&
+                // ignore if we do not have the data for the start of header
+                mp->pc.index + i >= 7) {
                 mp->in_sync = 1;
                 mp->bytes_left = 0;
                 break;
@@ -253,21 +307,25 @@ static int mlp_parse(AVCodecParserContext *s,
 
         avctx->bits_per_raw_sample = mh.group1_bits;
         if (avctx->bits_per_raw_sample > 16)
-            avctx->sample_fmt = SAMPLE_FMT_S32;
+            avctx->sample_fmt = AV_SAMPLE_FMT_S32;
         else
-            avctx->sample_fmt = SAMPLE_FMT_S16;
+            avctx->sample_fmt = AV_SAMPLE_FMT_S16;
         avctx->sample_rate = mh.group1_samplerate;
         avctx->frame_size = mh.access_unit_size;
 
         if (mh.stream_type == 0xbb) {
             /* MLP stream */
             avctx->channels = mlp_channels[mh.channels_mlp];
+            avctx->channel_layout = ff_mlp_layout[mh.channels_mlp];
         } else { /* mh.stream_type == 0xba */
             /* TrueHD stream */
-            if (mh.channels_thd_stream2)
+            if (mh.channels_thd_stream2) {
                 avctx->channels = truehd_channels(mh.channels_thd_stream2);
-            else
+                avctx->channel_layout = ff_truehd_layout(mh.channels_thd_stream2);
+            } else {
                 avctx->channels = truehd_channels(mh.channels_thd_stream1);
+                avctx->channel_layout = ff_truehd_layout(mh.channels_thd_stream1);
+            }
         }
 
         if (!mh.is_vbr) /* Stream is CBR */
@@ -286,10 +344,10 @@ lost_sync:
     return 1;
 }
 
-AVCodecParser mlp_parser = {
-    { CODEC_ID_MLP },
+AVCodecParser ff_mlp_parser = {
+    { CODEC_ID_MLP, CODEC_ID_TRUEHD },
     sizeof(MLPParseContext),
     mlp_init,
     mlp_parse,
-    NULL,
+    ff_parse_close,
 };