* Copyright (c) 2008-2010 Peter Ross (pross@xvid.org)
* Copyright (c) 2009 Daniel Verkamp (daniel@drv.nu)
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
- * @file libavformat/bink.c
+ * @file
* Bink demuxer
*
* Technical details here:
* http://wiki.multimedia.cx/index.php?title=Bink_Container
*/
+#include <inttypes.h>
+
+#include "libavutil/channel_layout.h"
#include "libavutil/intreadwrite.h"
#include "avformat.h"
+#include "internal.h"
enum BinkAudFlags {
BINK_AUD_16BITS = 0x4000, ///< prefer 16-bit output
#define BINK_MAX_WIDTH 7680
#define BINK_MAX_HEIGHT 4800
-typedef struct {
+typedef struct BinkDemuxContext {
uint32_t file_size;
- uint32_t total_frames;
uint32_t num_audio_tracks;
int current_track; ///< audio track to return in next packet
return 0;
}
-static int read_header(AVFormatContext *s, AVFormatParameters *ap)
+static int read_header(AVFormatContext *s)
{
BinkDemuxContext *bink = s->priv_data;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
uint32_t fps_num, fps_den;
AVStream *vst, *ast;
unsigned int i;
- uint32_t pos, prev_pos;
+ uint32_t pos, next_pos;
uint16_t flags;
int keyframe;
- vst = av_new_stream(s, 0);
+ vst = avformat_new_stream(s, NULL);
if (!vst)
return AVERROR(ENOMEM);
- vst->codec->codec_tag = get_le32(pb);
+ vst->codecpar->codec_tag = avio_rl32(pb);
- bink->file_size = get_le32(pb) + 8;
- bink->total_frames = get_le32(pb);
+ bink->file_size = avio_rl32(pb) + 8;
+ vst->duration = avio_rl32(pb);
- if (bink->total_frames > 1000000) {
+ if (vst->duration > 1000000) {
av_log(s, AV_LOG_ERROR, "invalid header: more than 1000000 frames\n");
return AVERROR(EIO);
}
- if (get_le32(pb) > bink->file_size) {
+ if (avio_rl32(pb) > bink->file_size) {
av_log(s, AV_LOG_ERROR,
"invalid header: largest frame size greater than file size\n");
return AVERROR(EIO);
}
- url_fskip(pb, 4);
+ avio_skip(pb, 4);
- vst->codec->width = get_le32(pb);
- vst->codec->height = get_le32(pb);
+ vst->codecpar->width = avio_rl32(pb);
+ vst->codecpar->height = avio_rl32(pb);
- fps_num = get_le32(pb);
- fps_den = get_le32(pb);
+ fps_num = avio_rl32(pb);
+ fps_den = avio_rl32(pb);
if (fps_num == 0 || fps_den == 0) {
- av_log(s, AV_LOG_ERROR, "invalid header: invalid fps (%d/%d)\n", fps_num, fps_den);
+ av_log(s, AV_LOG_ERROR,
+ "invalid header: invalid fps (%"PRIu32"/%"PRIu32")\n",
+ fps_num, fps_den);
return AVERROR(EIO);
}
- av_set_pts_info(vst, 64, fps_den, fps_num);
+ avpriv_set_pts_info(vst, 64, fps_den, fps_num);
+ vst->avg_frame_rate = av_inv_q(vst->time_base);
- url_fskip(pb, 4);
+ vst->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
+ vst->codecpar->codec_id = AV_CODEC_ID_BINKVIDEO;
+ vst->codecpar->extradata = av_mallocz(4 + AV_INPUT_BUFFER_PADDING_SIZE);
+ if (!vst->codecpar->extradata)
+ return AVERROR(ENOMEM);
+ vst->codecpar->extradata_size = 4;
+ avio_read(pb, vst->codecpar->extradata, 4);
- vst->codec->codec_type = CODEC_TYPE_VIDEO;
- vst->codec->codec_id = CODEC_ID_BINKVIDEO;
- bink->num_audio_tracks = get_le32(pb);
+ bink->num_audio_tracks = avio_rl32(pb);
if (bink->num_audio_tracks > BINK_MAX_AUDIO_TRACKS) {
av_log(s, AV_LOG_ERROR,
- "invalid header: more than "AV_STRINGIFY(BINK_MAX_AUDIO_TRACKS)" audio tracks (%d)\n",
+ "invalid header: more than "AV_STRINGIFY(BINK_MAX_AUDIO_TRACKS)" audio tracks (%"PRIu32")\n",
bink->num_audio_tracks);
return AVERROR(EIO);
}
if (bink->num_audio_tracks) {
- url_fskip(pb, 4 * bink->num_audio_tracks);
+ avio_skip(pb, 4 * bink->num_audio_tracks);
for (i = 0; i < bink->num_audio_tracks; i++) {
- ast = av_new_stream(s, 1);
+ ast = avformat_new_stream(s, NULL);
if (!ast)
return AVERROR(ENOMEM);
- ast->codec->codec_type = CODEC_TYPE_AUDIO;
- ast->codec->codec_tag = 0;
- ast->codec->sample_rate = get_le16(pb);
- av_set_pts_info(ast, 64, 1, ast->codec->sample_rate);
- flags = get_le16(pb);
- ast->codec->codec_id = flags & BINK_AUD_USEDCT ?
- CODEC_ID_BINKAUDIO_DCT : CODEC_ID_BINKAUDIO_RDFT;
- ast->codec->channels = flags & BINK_AUD_STEREO ? 2 : 1;
+ ast->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
+ ast->codecpar->codec_tag = 0;
+ ast->codecpar->sample_rate = avio_rl16(pb);
+ avpriv_set_pts_info(ast, 64, 1, ast->codecpar->sample_rate);
+ flags = avio_rl16(pb);
+ ast->codecpar->codec_id = flags & BINK_AUD_USEDCT ?
+ AV_CODEC_ID_BINKAUDIO_DCT : AV_CODEC_ID_BINKAUDIO_RDFT;
+ if (flags & BINK_AUD_STEREO) {
+ ast->codecpar->channels = 2;
+ ast->codecpar->channel_layout = AV_CH_LAYOUT_STEREO;
+ } else {
+ ast->codecpar->channels = 1;
+ ast->codecpar->channel_layout = AV_CH_LAYOUT_MONO;
+ }
+ ast->codecpar->extradata = av_mallocz(4 + AV_INPUT_BUFFER_PADDING_SIZE);
+ if (!ast->codecpar->extradata)
+ return AVERROR(ENOMEM);
+ ast->codecpar->extradata_size = 4;
+ AV_WL32(ast->codecpar->extradata, vst->codecpar->codec_tag);
}
- url_fskip(pb, 4 * bink->num_audio_tracks);
+ for (i = 0; i < bink->num_audio_tracks; i++)
+ s->streams[i + 1]->id = avio_rl32(pb);
}
/* frame index table */
- pos = get_le32(pb) & ~1;
- for (i = 0; i < bink->total_frames; i++) {
- prev_pos = pos;
- if (i == bink->total_frames - 1) {
- pos = bink->file_size;
+ next_pos = avio_rl32(pb);
+ for (i = 0; i < vst->duration; i++) {
+ pos = next_pos;
+ if (i == vst->duration - 1) {
+ next_pos = bink->file_size;
keyframe = 0;
} else {
- pos = get_le32(pb);
+ next_pos = avio_rl32(pb);
keyframe = pos & 1;
- pos &= ~1;
}
- if (pos <= prev_pos) {
+ pos &= ~1;
+ next_pos &= ~1;
+
+ if (next_pos <= pos) {
av_log(s, AV_LOG_ERROR, "invalid frame index table\n");
return AVERROR(EIO);
}
- av_add_index_entry(vst, pos, i, pos - prev_pos, 0,
+ av_add_index_entry(vst, pos, i, next_pos - pos, 0,
keyframe ? AVINDEX_KEYFRAME : 0);
}
- url_fskip(pb, 4);
+ avio_skip(pb, 4);
bink->current_track = -1;
return 0;
static int read_packet(AVFormatContext *s, AVPacket *pkt)
{
BinkDemuxContext *bink = s->priv_data;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
int ret;
if (bink->current_track < 0) {
int index_entry;
AVStream *st = s->streams[0]; // stream 0 is video stream with index
- if (bink->video_pts >= bink->total_frames)
+ if (bink->video_pts >= st->duration)
return AVERROR(EIO);
index_entry = av_index_search_timestamp(st, bink->video_pts,
bink->current_track = 0;
}
- if (bink->current_track < bink->num_audio_tracks) {
- uint32_t audio_size = get_le32(pb);
+ while (bink->current_track < bink->num_audio_tracks) {
+ uint32_t audio_size = avio_rl32(pb);
if (audio_size > bink->remain_packet_size - 4) {
av_log(s, AV_LOG_ERROR,
- "frame %"PRId64": audio size in header (%u) > size of packet left (%u)\n",
+ "frame %"PRId64": audio size in header (%"PRIu32") > size of packet left (%"PRIu32")\n",
bink->video_pts, audio_size, bink->remain_packet_size);
return AVERROR(EIO);
}
bink->remain_packet_size -= 4 + audio_size;
bink->current_track++;
- if (audio_size > 0) {
- /* Each audio packet reports the number of decompressed samples
- (in bytes). We use this value to calcuate the audio PTS */
- int reported_size = get_le32(pb) / (2 * s->streams[bink->current_track]->codec->channels);
- url_fseek(pb, -4, SEEK_CUR);
-
+ if (audio_size >= 4) {
/* get one audio packet per track */
- if ((ret = av_get_packet(pb, pkt, audio_size))
- != audio_size)
+ if ((ret = av_get_packet(pb, pkt, audio_size)) < 0)
return ret;
pkt->stream_index = bink->current_track;
- pkt->pts = bink->audio_pts[bink->current_track - 1] += reported_size;
+ pkt->pts = bink->audio_pts[bink->current_track - 1];
+
+ /* Each audio packet reports the number of decompressed samples
+ (in bytes). We use this value to calcuate the audio PTS */
+ if (pkt->size >= 4)
+ bink->audio_pts[bink->current_track -1] +=
+ AV_RL32(pkt->data) / (2 * s->streams[bink->current_track]->codecpar->channels);
return 0;
+ } else {
+ avio_skip(pb, audio_size);
}
}
/* get video packet */
- if ((ret = av_get_packet(pb, pkt, bink->remain_packet_size))
- != bink->remain_packet_size)
+ if ((ret = av_get_packet(pb, pkt, bink->remain_packet_size)) < 0)
return ret;
pkt->stream_index = 0;
pkt->pts = bink->video_pts++;
- pkt->flags |= PKT_FLAG_KEY;
+ pkt->flags |= AV_PKT_FLAG_KEY;
/* -1 instructs the next call to read_packet() to read the next frame */
bink->current_track = -1;
return 0;
}
-AVInputFormat bink_demuxer = {
- "bink",
- NULL_IF_CONFIG_SMALL("Bink"),
- sizeof(BinkDemuxContext),
- probe,
- read_header,
- read_packet,
+static int read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
+{
+ BinkDemuxContext *bink = s->priv_data;
+ AVStream *vst = s->streams[0];
+
+ if (!s->pb->seekable)
+ return -1;
+
+ /* seek to the first frame */
+ if (avio_seek(s->pb, vst->index_entries[0].pos, SEEK_SET) < 0)
+ return -1;
+
+ bink->video_pts = 0;
+ memset(bink->audio_pts, 0, sizeof(bink->audio_pts));
+ bink->current_track = -1;
+ return 0;
+}
+
+AVInputFormat ff_bink_demuxer = {
+ .name = "bink",
+ .long_name = NULL_IF_CONFIG_SMALL("Bink"),
+ .priv_data_size = sizeof(BinkDemuxContext),
+ .read_probe = probe,
+ .read_header = read_header,
+ .read_packet = read_packet,
+ .read_seek = read_seek,
};
projects / ffmpeg / blobdiff