voc: Split ff_voc_get_packet into a separate file
authorDiego Biurrun <diego@biurrun.de>
Tue, 16 Feb 2016 17:35:25 +0000 (18:35 +0100)
committerDiego Biurrun <diego@biurrun.de>
Thu, 18 Feb 2016 14:35:46 +0000 (15:35 +0100)
libavformat/Makefile
libavformat/voc_packet.c [copied from libavformat/vocdec.c with 71% similarity]
libavformat/vocdec.c

index 27053f2..b497b93 100644 (file)
@@ -84,12 +84,12 @@ OBJS-$(CONFIG_AVI_DEMUXER)               += avidec.o
 OBJS-$(CONFIG_AVI_MUXER)                 += avienc.o
 OBJS-$(CONFIG_AVISYNTH)                  += avisynth.o
 OBJS-$(CONFIG_AVM2_MUXER)                += swfenc.o swf.o
-OBJS-$(CONFIG_AVS_DEMUXER)               += avs.o vocdec.o voc.o
+OBJS-$(CONFIG_AVS_DEMUXER)               += avs.o voc_packet.o voc.o
 OBJS-$(CONFIG_BETHSOFTVID_DEMUXER)       += bethsoftvid.o
 OBJS-$(CONFIG_BFI_DEMUXER)               += bfi.o
 OBJS-$(CONFIG_BINK_DEMUXER)              += bink.o
 OBJS-$(CONFIG_BMV_DEMUXER)               += bmv.o
-OBJS-$(CONFIG_C93_DEMUXER)               += c93.o vocdec.o voc.o
+OBJS-$(CONFIG_C93_DEMUXER)               += c93.o voc_packet.o voc.o
 OBJS-$(CONFIG_CAF_DEMUXER)               += cafdec.o caf.o mov.o mov_chan.o \
                                             replaygain.o
 OBJS-$(CONFIG_CAVSVIDEO_DEMUXER)         += cavsvideodec.o rawdec.o
@@ -350,7 +350,7 @@ OBJS-$(CONFIG_VC1_DEMUXER)               += rawdec.o
 OBJS-$(CONFIG_VC1T_DEMUXER)              += vc1test.o
 OBJS-$(CONFIG_VC1T_MUXER)                += vc1testenc.o
 OBJS-$(CONFIG_VMD_DEMUXER)               += sierravmd.o
-OBJS-$(CONFIG_VOC_DEMUXER)               += vocdec.o voc.o
+OBJS-$(CONFIG_VOC_DEMUXER)               += vocdec.o voc_packet.o voc.o
 OBJS-$(CONFIG_VOC_MUXER)                 += vocenc.o voc.o
 OBJS-$(CONFIG_VQF_DEMUXER)               += vqf.o
 OBJS-$(CONFIG_W64_DEMUXER)               += wavdec.o pcm.o
similarity index 71%
copy from libavformat/vocdec.c
copy to libavformat/voc_packet.c
index 4599522..9e1c746 100644 (file)
@@ -1,7 +1,4 @@
 /*
- * Creative Voice File demuxer.
- * Copyright (c) 2006  Aurelien Jacobs <aurel@gnuage.org>
- *
  * This file is part of Libav.
  *
  * Libav is free software; you can redistribute it and/or
@@ -19,9 +16,9 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "libavutil/intreadwrite.h"
-#include "voc.h"
+#include "avformat.h"
 #include "internal.h"
+#include "voc.h"
 
 int
 ff_voc_get_packet(AVFormatContext *s, AVPacket *pkt, AVStream *st, int max_size)
@@ -120,60 +117,3 @@ ff_voc_get_packet(AVFormatContext *s, AVPacket *pkt, AVStream *st, int max_size)
     voc->remaining_size -= size;
     return av_get_packet(pb, pkt, size);
 }
-
-#if CONFIG_VOC_DEMUXER
-static int voc_probe(AVProbeData *p)
-{
-    int version, check;
-
-    if (memcmp(p->buf, ff_voc_magic, sizeof(ff_voc_magic) - 1))
-        return 0;
-    version = AV_RL16(p->buf + 22);
-    check = AV_RL16(p->buf + 24);
-    if (~version + 0x1234 != check)
-        return 10;
-
-    return AVPROBE_SCORE_MAX;
-}
-
-static int voc_read_header(AVFormatContext *s)
-{
-    VocDecContext *voc = s->priv_data;
-    AVIOContext *pb = s->pb;
-    int header_size;
-
-    avio_skip(pb, 20);
-    header_size = avio_rl16(pb) - 22;
-    if (header_size != 4) {
-        av_log(s, AV_LOG_ERROR, "unknown header size: %d\n", header_size);
-        return AVERROR(ENOSYS);
-    }
-    avio_skip(pb, header_size);
-
-    s->ctx_flags |= AVFMTCTX_NOHEADER;
-
-    voc->remaining_size = 0;
-    return 0;
-}
-
-static int voc_read_packet(AVFormatContext *s, AVPacket *pkt)
-{
-    if (!s->nb_streams) {
-        AVStream *st = avformat_new_stream(s, NULL);
-        if (!st)
-            return AVERROR(ENOMEM);
-        st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
-    }
-    return ff_voc_get_packet(s, pkt, s->streams[0], 0);
-}
-
-AVInputFormat ff_voc_demuxer = {
-    .name           = "voc",
-    .long_name      = NULL_IF_CONFIG_SMALL("Creative Voice"),
-    .priv_data_size = sizeof(VocDecContext),
-    .read_probe     = voc_probe,
-    .read_header    = voc_read_header,
-    .read_packet    = voc_read_packet,
-    .codec_tag      = (const AVCodecTag* const []){ ff_voc_codec_tags, 0 },
-};
-#endif /* CONFIG_VOC_DEMUXER */
index 4599522..aca77ce 100644 (file)
 #include "voc.h"
 #include "internal.h"
 
-int
-ff_voc_get_packet(AVFormatContext *s, AVPacket *pkt, AVStream *st, int max_size)
-{
-    VocDecContext *voc = s->priv_data;
-    AVCodecContext *dec = st->codec;
-    AVIOContext *pb = s->pb;
-    VocType type;
-    int size, tmp_codec=-1;
-    int sample_rate = 0;
-    int channels = 1;
-
-    while (!voc->remaining_size) {
-        type = avio_r8(pb);
-        if (type == VOC_TYPE_EOF)
-            return AVERROR(EIO);
-        voc->remaining_size = avio_rl24(pb);
-        if (!voc->remaining_size) {
-            if (!s->pb->seekable)
-                return AVERROR(EIO);
-            voc->remaining_size = avio_size(pb) - avio_tell(pb);
-        }
-        max_size -= 4;
-
-        switch (type) {
-        case VOC_TYPE_VOICE_DATA:
-            if (!dec->sample_rate) {
-                dec->sample_rate = 1000000 / (256 - avio_r8(pb));
-                if (sample_rate)
-                    dec->sample_rate = sample_rate;
-                avpriv_set_pts_info(st, 64, 1, dec->sample_rate);
-                dec->channels = channels;
-                dec->bits_per_coded_sample = av_get_bits_per_sample(dec->codec_id);
-            } else
-                avio_skip(pb, 1);
-            tmp_codec = avio_r8(pb);
-            voc->remaining_size -= 2;
-            max_size -= 2;
-            channels = 1;
-            break;
-
-        case VOC_TYPE_VOICE_DATA_CONT:
-            break;
-
-        case VOC_TYPE_EXTENDED:
-            sample_rate = avio_rl16(pb);
-            avio_r8(pb);
-            channels = avio_r8(pb) + 1;
-            sample_rate = 256000000 / (channels * (65536 - sample_rate));
-            voc->remaining_size = 0;
-            max_size -= 4;
-            break;
-
-        case VOC_TYPE_NEW_VOICE_DATA:
-            if (!dec->sample_rate) {
-                dec->sample_rate = avio_rl32(pb);
-                avpriv_set_pts_info(st, 64, 1, dec->sample_rate);
-                dec->bits_per_coded_sample = avio_r8(pb);
-                dec->channels = avio_r8(pb);
-            } else
-                avio_skip(pb, 6);
-            tmp_codec = avio_rl16(pb);
-            avio_skip(pb, 4);
-            voc->remaining_size -= 12;
-            max_size -= 12;
-            break;
-
-        default:
-            avio_skip(pb, voc->remaining_size);
-            max_size -= voc->remaining_size;
-            voc->remaining_size = 0;
-            break;
-        }
-    }
-
-    if (tmp_codec >= 0) {
-        tmp_codec = ff_codec_get_id(ff_voc_codec_tags, tmp_codec);
-        if (dec->codec_id == AV_CODEC_ID_NONE)
-            dec->codec_id = tmp_codec;
-        else if (dec->codec_id != tmp_codec)
-            av_log(s, AV_LOG_WARNING, "Ignoring mid-stream change in audio codec\n");
-        if (dec->codec_id == AV_CODEC_ID_NONE) {
-            if (s->audio_codec_id == AV_CODEC_ID_NONE) {
-                av_log(s, AV_LOG_ERROR, "unknown codec tag\n");
-                return AVERROR(EINVAL);
-            }
-            av_log(s, AV_LOG_WARNING, "unknown codec tag\n");
-        }
-    }
-
-    dec->bit_rate = dec->sample_rate * dec->bits_per_coded_sample;
-
-    if (max_size <= 0)
-        max_size = 2048;
-    size = FFMIN(voc->remaining_size, max_size);
-    voc->remaining_size -= size;
-    return av_get_packet(pb, pkt, size);
-}
-
-#if CONFIG_VOC_DEMUXER
 static int voc_probe(AVProbeData *p)
 {
     int version, check;
@@ -176,4 +77,3 @@ AVInputFormat ff_voc_demuxer = {
     .read_packet    = voc_read_packet,
     .codec_tag      = (const AVCodecTag* const []){ ff_voc_codec_tags, 0 },
 };
-#endif /* CONFIG_VOC_DEMUXER */