xmv: Merge XMVAudioTrack into XMVAudioPacket

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/xmv.c

@@ -42,19 +42,6 @@
                            XMV_AUDIO_ADPCM51_FRONTCENTERLOW | \
                            XMV_AUDIO_ADPCM51_REARLEFTRIGHT)
 
-typedef struct XMVAudioTrack {
-    uint16_t compression;
-    uint16_t channels;
-    uint32_t sample_rate;
-    uint16_t bits_per_sample;
-    uint32_t bit_rate;
-    uint16_t flags;
-    uint16_t block_align;
-    uint16_t block_samples;
-
-    enum CodecID codec_id;
-} XMVAudioTrack;
-
 typedef struct XMVVideoPacket {
     /* The decoder stream index for this video packet. */
     int stream_index;
@@ -79,8 +66,16 @@ typedef struct XMVAudioPacket {
     /* The decoder stream index for this audio packet. */
     int stream_index;
 
-    /* The audio track this packet encodes. */
-    XMVAudioTrack *track;
+    uint16_t compression;
+    uint16_t channels;
+    uint32_t sample_rate;
+    uint16_t bits_per_sample;
+    uint32_t bit_rate;
+    uint16_t flags;
+    uint16_t block_align;
+    uint16_t block_samples;
+
+    enum CodecID codec_id;
 
     uint32_t data_size;
     uint64_t data_offset;
@@ -93,8 +88,6 @@ typedef struct XMVAudioPacket {
 typedef struct XMVDemuxContext {
     uint16_t audio_track_count;
 
-    XMVAudioTrack *audio_tracks;
-
     uint32_t this_packet_size;
     uint32_t next_packet_size;
 
@@ -172,34 +165,28 @@ static int xmv_read_header(AVFormatContext *s,
 
     avio_skip(pb, 2); /* Unknown (padding?) */
 
-    xmv->audio_tracks = av_malloc(xmv->audio_track_count * sizeof(XMVAudioTrack));
-    if (!xmv->audio_tracks)
-        return AVERROR(ENOMEM);
-
     xmv->audio = av_malloc(xmv->audio_track_count * sizeof(XMVAudioPacket));
     if (!xmv->audio)
         return AVERROR(ENOMEM);
 
     for (audio_track = 0; audio_track < xmv->audio_track_count; audio_track++) {
-        XMVAudioTrack  *track  = &xmv->audio_tracks[audio_track];
-        XMVAudioPacket *packet = &xmv->audio       [audio_track];
+        XMVAudioPacket *packet = &xmv->audio[audio_track];
         AVStream *ast = NULL;
 
-        track->compression     = avio_rl16(pb);
-        track->channels        = avio_rl16(pb);
-        track->sample_rate     = avio_rl32(pb);
-        track->bits_per_sample = avio_rl16(pb);
-        track->flags           = avio_rl16(pb);
-
-        track->bit_rate      = track->bits_per_sample *
-                               track->sample_rate *
-                               track->channels;
-        track->block_align   = 36 * track->channels;
-        track->block_samples = 64;
-        track->codec_id      = ff_wav_codec_get_id(track->compression,
-                                                   track->bits_per_sample);
-
-        packet->track        = track;
+        packet->compression     = avio_rl16(pb);
+        packet->channels        = avio_rl16(pb);
+        packet->sample_rate     = avio_rl32(pb);
+        packet->bits_per_sample = avio_rl16(pb);
+        packet->flags           = avio_rl16(pb);
+
+        packet->bit_rate      = packet->bits_per_sample *
+                                packet->sample_rate *
+                                packet->channels;
+        packet->block_align   = 36 * packet->channels;
+        packet->block_samples = 64;
+        packet->codec_id      = ff_wav_codec_get_id(packet->compression,
+                                                    packet->bits_per_sample);
+
         packet->stream_index = -1;
 
         packet->frame_size  = 0;
@@ -207,24 +194,24 @@ static int xmv_read_header(AVFormatContext *s,
 
         /* TODO: ADPCM'd 5.1 sound is encoded in three separate streams.
          *       Those need to be interleaved to a proper 5.1 stream. */
-        if (track->flags & XMV_AUDIO_ADPCM51)
+        if (packet->flags & XMV_AUDIO_ADPCM51)
             av_log(s, AV_LOG_WARNING, "Unsupported 5.1 ADPCM audio stream "
-                                      "(0x%04X)\n", track->flags);
+                                      "(0x%04X)\n", packet->flags);
 
         ast = av_new_stream(s, audio_track);
         if (!ast)
             return AVERROR(ENOMEM);
 
         ast->codec->codec_type            = AVMEDIA_TYPE_AUDIO;
-        ast->codec->codec_id              = track->codec_id;
-        ast->codec->codec_tag             = track->compression;
-        ast->codec->channels              = track->channels;
-        ast->codec->sample_rate           = track->sample_rate;
-        ast->codec->bits_per_coded_sample = track->bits_per_sample;
-        ast->codec->bit_rate              = track->bit_rate;
-        ast->codec->block_align           = 36 * track->channels;
+        ast->codec->codec_id              = packet->codec_id;
+        ast->codec->codec_tag             = packet->compression;
+        ast->codec->channels              = packet->channels;
+        ast->codec->sample_rate           = packet->sample_rate;
+        ast->codec->bits_per_coded_sample = packet->bits_per_sample;
+        ast->codec->bit_rate              = packet->bit_rate;
+        ast->codec->block_align           = 36 * packet->channels;
 
-        av_set_pts_info(ast, 32, track->block_samples, track->sample_rate);
+        av_set_pts_info(ast, 32, packet->block_samples, packet->sample_rate);
 
         packet->stream_index = ast->index;
 
@@ -339,7 +326,7 @@ static int xmv_process_packet_header(AVFormatContext *s)
 
         /** Carve up the audio data in frame_count slices */
         packet->frame_size  = packet->data_size  / xmv->video.frame_count;
-        packet->frame_size -= packet->frame_size % packet->track->block_align;
+        packet->frame_size -= packet->frame_size % packet->block_align;
     }
 
     /* Packet data offsets */
@@ -443,7 +430,7 @@ static int xmv_fetch_audio_packet(AVFormatContext *s,
 
     /* Calculate the PTS */
 
-    block_count = data_size / audio->track->block_align;
+    block_count = data_size / audio->block_align;
 
     pkt->duration = block_count;
     pkt->pts      = audio->block_count;
@@ -560,7 +547,6 @@ static int xmv_read_close(AVFormatContext *s)
     XMVDemuxContext *xmv = s->priv_data;
 
     av_free(xmv->audio);
-    av_free(xmv->audio_tracks);
 
     return 0;
 }