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Isolate caching of audio frames in its own function. Patch by Ronald S. Bultje: rsbultje gmail com Original thread: Re: [FFmpeg-devel] [PATCH 3/6] rmdec.c: ff_rm_retrieve_cache() Date: 11/05/2007 09:25 PM

Originally committed as revision 10963 to svn://svn.ffmpeg.org/ffmpeg/trunk

Ronald S. Bultje authored on 2007/11/09 00:14:37
Showing 1 changed files
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@@ -632,6 +632,27 @@ ff_rm_parse_packet (AVFormatContext *s, AVStream *st, int len, AVPacket *pkt,
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     return 0;
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 }
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+static void
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+ff_rm_retrieve_cache (AVFormatContext *s, AVStream *st, AVPacket *pkt)
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+{
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+    ByteIOContext *pb = &s->pb;
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+    RMContext *rm = s->priv_data;
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+
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+    assert (rm->audio_pkt_cnt > 0);
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+
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+    if (st->codec->codec_id == CODEC_ID_AAC)
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+        av_get_packet(pb, pkt, rm->sub_packet_lengths[rm->sub_packet_cnt - rm->audio_pkt_cnt]);
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+    else {
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+        av_new_packet(pkt, st->codec->block_align);
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+        memcpy(pkt->data, rm->audiobuf + st->codec->block_align *
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+               (rm->sub_packet_h * rm->audio_framesize / st->codec->block_align - rm->audio_pkt_cnt),
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+               st->codec->block_align);
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+    }
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+    rm->audio_pkt_cnt--;
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+    pkt->flags = 0;
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+    pkt->stream_index = st->index;
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+}
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+
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 static int rm_read_packet(AVFormatContext *s, AVPacket *pkt)
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 {
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     RMContext *rm = s->priv_data;
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@@ -645,17 +666,7 @@ static int rm_read_packet(AVFormatContext *s, AVPacket *pkt)
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     if (rm->audio_pkt_cnt) {
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         // If there are queued audio packet return them first
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         st = s->streams[rm->audio_stream_num];
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-        if (st->codec->codec_id == CODEC_ID_AAC)
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-            av_get_packet(pb, pkt, rm->sub_packet_lengths[rm->sub_packet_cnt - rm->audio_pkt_cnt]);
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-        else {
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-        av_new_packet(pkt, st->codec->block_align);
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-        memcpy(pkt->data, rm->audiobuf + st->codec->block_align *
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-               (rm->sub_packet_h * rm->audio_framesize / st->codec->block_align - rm->audio_pkt_cnt),
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-               st->codec->block_align);
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-        }
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-        rm->audio_pkt_cnt--;
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-        pkt->flags = 0;
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-        pkt->stream_index = st->index;
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+        ff_rm_retrieve_cache(s, st, pkt);
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     } else if (rm->old_format) {
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         st = s->streams[0];
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         if (st->codec->codec_id == CODEC_ID_RA_288) {