mov: Wrap stsc index and count compare in a separate function

[ffmpeg] / libavformat / cafdec.c

diff --git a/libavformat/cafdec.c b/libavformat/cafdec.c
index 36c39678d17918d5c34e4499b7b369cf445b2d9d..65bdcfc1ef0927cf16626883f35e055b281cd9fd 100644 (file)
--- a/libavformat/cafdec.c
+++ b/libavformat/cafdec.c
@@ -69,29 +69,29 @@ static int read_desc_chunk(AVFormatContext *s)
         return AVERROR(ENOMEM);
 
     /* parse format description */
-    st->codec->codec_type  = AVMEDIA_TYPE_AUDIO;
-    st->codec->sample_rate = av_int2double(avio_rb64(pb));
-    st->codec->codec_tag   = avio_rb32(pb);
+    st->codecpar->codec_type  = AVMEDIA_TYPE_AUDIO;
+    st->codecpar->sample_rate = av_int2double(avio_rb64(pb));
+    st->codecpar->codec_tag   = avio_rb32(pb);
     flags = avio_rb32(pb);
     caf->bytes_per_packet  = avio_rb32(pb);
-    st->codec->block_align = caf->bytes_per_packet;
+    st->codecpar->block_align = caf->bytes_per_packet;
     caf->frames_per_packet = avio_rb32(pb);
-    st->codec->channels    = avio_rb32(pb);
-    st->codec->bits_per_coded_sample = avio_rb32(pb);
+    st->codecpar->channels    = avio_rb32(pb);
+    st->codecpar->bits_per_coded_sample = avio_rb32(pb);
 
     /* calculate bit rate for constant size packets */
     if (caf->frames_per_packet > 0 && caf->bytes_per_packet > 0) {
-        st->codec->bit_rate = (uint64_t)st->codec->sample_rate * (uint64_t)caf->bytes_per_packet * 8
-                              / (uint64_t)caf->frames_per_packet;
+        st->codecpar->bit_rate = (uint64_t)st->codecpar->sample_rate * (uint64_t)caf->bytes_per_packet * 8
+                                 / (uint64_t)caf->frames_per_packet;
     } else {
-        st->codec->bit_rate = 0;
+        st->codecpar->bit_rate = 0;
     }
 
     /* determine codec */
-    if (st->codec->codec_tag == MKBETAG('l','p','c','m'))
-        st->codec->codec_id = ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample, (flags ^ 0x2) | 0x4);
+    if (st->codecpar->codec_tag == MKBETAG('l','p','c','m'))
+        st->codecpar->codec_id = ff_mov_get_lpcm_codec_id(st->codecpar->bits_per_coded_sample, (flags ^ 0x2) | 0x4);
     else
-        st->codec->codec_id = ff_codec_get_id(ff_codec_caf_tags, st->codec->codec_tag);
+        st->codecpar->codec_id = ff_codec_get_id(ff_codec_caf_tags, st->codecpar->codec_tag);
     return 0;
 }
 
@@ -104,7 +104,7 @@ static int read_kuki_chunk(AVFormatContext *s, int64_t size)
     if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
         return -1;
 
-    if (st->codec->codec_id == AV_CODEC_ID_AAC) {
+    if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
         /* The magic cookie format for AAC is an mp4 esds atom.
            The lavc AAC decoder requires the data from the codec specific
            description as extradata input. */
@@ -113,13 +113,13 @@ static int read_kuki_chunk(AVFormatContext *s, int64_t size)
         strt = avio_tell(pb);
         ff_mov_read_esds(s, pb);
         skip = size - (avio_tell(pb) - strt);
-        if (skip < 0 || !st->codec->extradata ||
-            st->codec->codec_id != AV_CODEC_ID_AAC) {
+        if (skip < 0 || !st->codecpar->extradata ||
+            st->codecpar->codec_id != AV_CODEC_ID_AAC) {
             av_log(s, AV_LOG_ERROR, "invalid AAC magic cookie\n");
             return AVERROR_INVALIDDATA;
         }
         avio_skip(pb, skip);
-    } else if (st->codec->codec_id == AV_CODEC_ID_ALAC) {
+    } else if (st->codecpar->codec_id == AV_CODEC_ID_ALAC) {
 #define ALAC_PREAMBLE 12
 #define ALAC_HEADER   36
 #define ALAC_NEW_KUKI 24
@@ -131,8 +131,8 @@ static int read_kuki_chunk(AVFormatContext *s, int64_t size)
         }
         avio_read(pb, preamble, ALAC_PREAMBLE);
 
-        st->codec->extradata = av_mallocz(ALAC_HEADER + AV_INPUT_BUFFER_PADDING_SIZE);
-        if (!st->codec->extradata)
+        st->codecpar->extradata = av_mallocz(ALAC_HEADER + AV_INPUT_BUFFER_PADDING_SIZE);
+        if (!st->codecpar->extradata)
             return AVERROR(ENOMEM);
 
         /* For the old style cookie, we skip 12 bytes, then read 36 bytes.
@@ -142,26 +142,26 @@ static int read_kuki_chunk(AVFormatContext *s, int64_t size)
         if (!memcmp(&preamble[4], "frmaalac", 8)) {
             if (size < ALAC_PREAMBLE + ALAC_HEADER) {
                 av_log(s, AV_LOG_ERROR, "invalid ALAC magic cookie\n");
-                av_freep(&st->codec->extradata);
+                av_freep(&st->codecpar->extradata);
                 return AVERROR_INVALIDDATA;
             }
-            avio_read(pb, st->codec->extradata, ALAC_HEADER);
+            avio_read(pb, st->codecpar->extradata, ALAC_HEADER);
             avio_skip(pb, size - ALAC_PREAMBLE - ALAC_HEADER);
         } else {
-            AV_WB32(st->codec->extradata, 36);
-            memcpy(&st->codec->extradata[4], "alac", 4);
-            AV_WB32(&st->codec->extradata[8], 0);
-            memcpy(&st->codec->extradata[12], preamble, 12);
-            avio_read(pb, &st->codec->extradata[24], ALAC_NEW_KUKI - 12);
+            AV_WB32(st->codecpar->extradata, 36);
+            memcpy(&st->codecpar->extradata[4], "alac", 4);
+            AV_WB32(&st->codecpar->extradata[8], 0);
+            memcpy(&st->codecpar->extradata[12], preamble, 12);
+            avio_read(pb, &st->codecpar->extradata[24], ALAC_NEW_KUKI - 12);
             avio_skip(pb, size - ALAC_NEW_KUKI);
         }
-        st->codec->extradata_size = ALAC_HEADER;
+        st->codecpar->extradata_size = ALAC_HEADER;
     } else {
-        st->codec->extradata = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
-        if (!st->codec->extradata)
+        st->codecpar->extradata = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
+        if (!st->codecpar->extradata)
             return AVERROR(ENOMEM);
-        avio_read(pb, st->codec->extradata, size);
-        st->codec->extradata_size = size;
+        avio_read(pb, st->codecpar->extradata, size);
+        st->codecpar->extradata_size = size;
     }
 
     return 0;
@@ -309,7 +309,7 @@ static int read_header(AVFormatContext *s)
         if (caf->data_size > 0)
             st->nb_frames = (caf->data_size / caf->bytes_per_packet) * caf->frames_per_packet;
     } else if (st->nb_index_entries) {
-        st->codec->bit_rate = st->codec->sample_rate * caf->data_size * 8 /
+        st->codecpar->bit_rate = st->codecpar->sample_rate * caf->data_size * 8 /
                               st->duration;
     } else {
         av_log(s, AV_LOG_ERROR, "Missing packet table. It is required when "
@@ -317,7 +317,7 @@ static int read_header(AVFormatContext *s)
         return AVERROR_INVALIDDATA;
     }
 
-    avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
+    avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);
     st->start_time = 0;
 
     /* position the stream at the start of data */