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authorDerek Buitenhuis <derek.buitenhuis@gmail.com>2016-02-24 18:04:34 +0000
committerDerek Buitenhuis <derek.buitenhuis@gmail.com>2016-02-24 18:04:34 +0000
commitf99195d56f4aab266926724ca1cfae822df4df16 (patch)
tree34e045aacb2c306e90e761c9ec2810c793fe8117 /libavformat/vocdec.c
parent745d0c0300852e902199f39d282dc60e64b8c208 (diff)
parent0d1229f1d2b8f26dd50c6be7917bb8ed8cb95364 (diff)
downloadffmpeg-f99195d56f4aab266926724ca1cfae822df4df16.tar.gz
Merge commit '0d1229f1d2b8f26dd50c6be7917bb8ed8cb95364'
* commit '0d1229f1d2b8f26dd50c6be7917bb8ed8cb95364': voc: Split ff_voc_get_packet into a separate file Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Diffstat (limited to 'libavformat/vocdec.c')
-rw-r--r--libavformat/vocdec.c119
1 files changed, 0 insertions, 119 deletions
diff --git a/libavformat/vocdec.c b/libavformat/vocdec.c
index 70fa009814..0a11b97567 100644
--- a/libavformat/vocdec.c
+++ b/libavformat/vocdec.c
@@ -23,124 +23,6 @@
#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;
- int64_t duration;
- int ret;
-
- av_add_index_entry(st,
- avio_tell(pb),
- voc->pts,
- voc->remaining_size,
- 0,
- AVINDEX_KEYFRAME);
-
- while (!voc->remaining_size) {
- type = avio_r8(pb);
- if (type == VOC_TYPE_EOF)
- return AVERROR_EOF;
- 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->channels * dec->bits_per_coded_sample;
-
- if (max_size <= 0)
- max_size = 2048;
- size = FFMIN(voc->remaining_size, max_size);
- voc->remaining_size -= size;
-
- ret = av_get_packet(pb, pkt, size);
- pkt->dts = pkt->pts = voc->pts;
-
- duration = av_get_audio_frame_duration(st->codec, size);
- if (duration > 0 && voc->pts != AV_NOPTS_VALUE)
- voc->pts += duration;
- else
- voc->pts = AV_NOPTS_VALUE;
-
- return ret;
-}
-
-#if CONFIG_VOC_DEMUXER
static int voc_probe(AVProbeData *p)
{
int version, check;
@@ -215,4 +97,3 @@ AVInputFormat ff_voc_demuxer = {
.read_seek = voc_read_seek,
.codec_tag = (const AVCodecTag* const []){ ff_voc_codec_tags, 0 },
};
-#endif /* CONFIG_VOC_DEMUXER */