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Code Issues Releases Activity

lavf/wvenc: remove hacks since wavpack demuxer & decoder hacks have been fixed

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This commit is contained in:
Paul B Mahol 2013-05-28 10:05:58 +00:00
parent 3ed3aaab32
commit 269fc8e049
1 changed files with 23 additions and 80 deletions
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103
libavformat/wvenc.c
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@ -22,14 +22,10 @@
#include "libavutil/intreadwrite.h"
#include "avformat.h"
#include "internal.h"
#include "avio_internal.h"
#include "apetag.h"
#define WV_EXTRA_SIZE 12
#define WV_END_BLOCK 0x1000
typedef struct{
uint32_t duration;
typedef struct WVMuxContext {
int64_t samples;
} WVMuxContext;
static int write_header(AVFormatContext *s)
@ -44,87 +40,33 @@ static int write_header(AVFormatContext *s)
av_log(s, AV_LOG_ERROR, "unsupported codec\n");
return AVERROR(EINVAL);
}
if (codec->extradata_size > 0) {
avpriv_report_missing_feature(s, "remuxing from matroska container");
return AVERROR_PATCHWELCOME;
}
avpriv_set_pts_info(s->streams[0], 64, 1, codec->sample_rate);
return 0;
}
static int write_packet(AVFormatContext *ctx, AVPacket *pkt)
{
WVMuxContext *s = ctx->priv_data;
if (pkt->size >= 24)
s->samples += AV_RL32(pkt->data + 20);
avio_write(ctx->pb, pkt->data, pkt->size);
return 0;
}
static int write_packet(AVFormatContext *s, AVPacket *pkt)
static int write_trailer(AVFormatContext *ctx)
{
WVMuxContext *wc = s->priv_data;
AVCodecContext *codec = s->streams[0]->codec;
AVIOContext *pb = s->pb;
uint64_t size;
uint32_t flags;
uint32_t left = pkt->size;
uint8_t *ptr = pkt->data;
int off = codec->channels > 2 ? 4 : 0;
WVMuxContext *s = ctx->priv_data;
/* FIXME: Simplify decoder/demuxer so bellow code can support midstream
* change of stream parameters */
wc->duration += pkt->duration;
ffio_wfourcc(pb, "wvpk");
if (off) {
size = AV_RL32(pkt->data);
if (size <= 12)
return AVERROR_INVALIDDATA;
size -= 12;
} else {
size = pkt->size;
}
ff_ape_write(ctx);
if (size + off > left)
return AVERROR_INVALIDDATA;
avio_wl32(pb, size + 12);
avio_wl16(pb, 0x410);
avio_w8(pb, 0);
avio_w8(pb, 0);
avio_wl32(pb, -1);
avio_wl32(pb, pkt->pts);
ptr += off; left -= off;
flags = AV_RL32(ptr + 4);
avio_write(pb, ptr, size);
ptr += size; left -= size;
while (!(flags & WV_END_BLOCK) &&
(left >= 4 + WV_EXTRA_SIZE)) {
ffio_wfourcc(pb, "wvpk");
size = AV_RL32(ptr);
ptr += 4; left -= 4;
if (size < 24 || size - 24 > left)
return AVERROR_INVALIDDATA;
avio_wl32(pb, size);
avio_wl16(pb, 0x410);
avio_w8(pb, 0);
avio_w8(pb, 0);
avio_wl32(pb, -1);
avio_wl32(pb, pkt->pts);
flags = AV_RL32(ptr + 4);
avio_write(pb, ptr, WV_EXTRA_SIZE);
ptr += WV_EXTRA_SIZE; left -= WV_EXTRA_SIZE;
avio_write(pb, ptr, size - 24);
ptr += size - 24; left -= size - 24;
}
return 0;
}
static int write_trailer(AVFormatContext *s)
{
WVMuxContext *wc = s->priv_data;
AVIOContext *pb = s->pb;
ff_ape_write(s);
if (pb->seekable) {
avio_seek(pb, 12, SEEK_SET);
avio_wl32(pb, wc->duration);
avio_flush(pb);
if (ctx->pb->seekable && s->samples) {
avio_seek(ctx->pb, 12, SEEK_SET);
if (s->samples < 0xFFFFFFFFu)
avio_wl32(ctx->pb, s->samples);
else
avio_wl32(ctx->pb, 0xFFFFFFFFu);
avio_flush(ctx->pb);
}
return 0;
@ -140,4 +82,5 @@ AVOutputFormat ff_wv_muxer = {
.write_header = write_header,
.write_packet = write_packet,
.write_trailer = write_trailer,
.flags = AVFMT_NOTIMESTAMPS,
};