/*
* Flash Compatible Streaming Format muxer
- * Copyright (c) 2000 Fabrice Bellard.
- * Copyright (c) 2003 Tinic Uro.
+ * Copyright (c) 2000 Fabrice Bellard
+ * Copyright (c) 2003 Tinic Uro
*
- * 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
*/
-#include "libavcodec/bitstream.h"
+#include "libavcodec/put_bits.h"
#include "avformat.h"
#include "swf.h"
static void put_swf_tag(AVFormatContext *s, int tag)
{
SWFContext *swf = s->priv_data;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
- swf->tag_pos = url_ftell(pb);
+ swf->tag_pos = avio_tell(pb);
swf->tag = tag;
/* reserve some room for the tag */
if (tag & TAG_LONG) {
- put_le16(pb, 0);
- put_le32(pb, 0);
+ avio_wl16(pb, 0);
+ avio_wl32(pb, 0);
} else {
- put_le16(pb, 0);
+ avio_wl16(pb, 0);
}
}
static void put_swf_end_tag(AVFormatContext *s)
{
SWFContext *swf = s->priv_data;
- ByteIOContext *pb = s->pb;
- offset_t pos;
+ AVIOContext *pb = s->pb;
+ int64_t pos;
int tag_len, tag;
- pos = url_ftell(pb);
+ pos = avio_tell(pb);
tag_len = pos - swf->tag_pos - 2;
tag = swf->tag;
- url_fseek(pb, swf->tag_pos, SEEK_SET);
+ avio_seek(pb, swf->tag_pos, SEEK_SET);
if (tag & TAG_LONG) {
tag &= ~TAG_LONG;
- put_le16(pb, (tag << 6) | 0x3f);
- put_le32(pb, tag_len - 4);
+ avio_wl16(pb, (tag << 6) | 0x3f);
+ avio_wl32(pb, tag_len - 4);
} else {
assert(tag_len < 0x3f);
- put_le16(pb, (tag << 6) | tag_len);
+ avio_wl16(pb, (tag << 6) | tag_len);
}
- url_fseek(pb, pos, SEEK_SET);
+ avio_seek(pb, pos, SEEK_SET);
}
static inline void max_nbits(int *nbits_ptr, int val)
*nbits_ptr = n;
}
-static void put_swf_rect(ByteIOContext *pb,
+static void put_swf_rect(AVIOContext *pb,
int xmin, int xmax, int ymin, int ymax)
{
PutBitContext p;
put_bits(&p, nbits, ymax & mask);
flush_put_bits(&p);
- put_buffer(pb, buf, pbBufPtr(&p) - p.buf);
+ avio_write(pb, buf, put_bits_ptr(&p) - p.buf);
}
static void put_swf_line_edge(PutBitContext *pb, int dx, int dy)
#define FRAC_BITS 16
-static void put_swf_matrix(ByteIOContext *pb,
+static void put_swf_matrix(AVIOContext *pb,
int a, int b, int c, int d, int tx, int ty)
{
PutBitContext p;
put_bits(&p, nbits, ty);
flush_put_bits(&p);
- put_buffer(pb, buf, pbBufPtr(&p) - p.buf);
+ avio_write(pb, buf, put_bits_ptr(&p) - p.buf);
}
static int swf_write_header(AVFormatContext *s)
{
SWFContext *swf = s->priv_data;
- ByteIOContext *pb = s->pb;
- AVCodecContext *enc, *audio_enc, *video_enc;
+ AVIOContext *pb = s->pb;
PutBitContext p;
uint8_t buf1[256];
int i, width, height, rate, rate_base;
int version;
- swf->audio_in_pos = 0;
swf->sound_samples = 0;
swf->swf_frame_number = 0;
swf->video_frame_number = 0;
- video_enc = NULL;
- audio_enc = NULL;
for(i=0;i<s->nb_streams;i++) {
- enc = s->streams[i]->codec;
- if (enc->codec_type == CODEC_TYPE_AUDIO) {
- if (enc->codec_id == CODEC_ID_MP3) {
- if (!enc->frame_size) {
- av_log(s, AV_LOG_ERROR, "audio frame size not set\n");
- return -1;
- }
- audio_enc = enc;
+ AVCodecContext *enc = s->streams[i]->codec;
+ if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
+ if (enc->codec_id == AV_CODEC_ID_MP3) {
+ swf->audio_enc = enc;
+ swf->audio_fifo= av_fifo_alloc(AUDIO_FIFO_SIZE);
+ if (!swf->audio_fifo)
+ return AVERROR(ENOMEM);
} else {
av_log(s, AV_LOG_ERROR, "SWF muxer only supports MP3\n");
return -1;
}
} else {
- if (enc->codec_id == CODEC_ID_VP6F ||
- enc->codec_id == CODEC_ID_FLV1 ||
- enc->codec_id == CODEC_ID_MJPEG) {
- video_enc = enc;
+ if (enc->codec_id == AV_CODEC_ID_VP6F ||
+ enc->codec_id == AV_CODEC_ID_FLV1 ||
+ enc->codec_id == AV_CODEC_ID_MJPEG) {
+ swf->video_enc = enc;
} else {
av_log(s, AV_LOG_ERROR, "SWF muxer only supports VP6, FLV1 and MJPEG\n");
return -1;
}
}
- if (!video_enc) {
+ if (!swf->video_enc) {
/* currently, cannot work correctly if audio only */
- swf->video_type = 0;
width = 320;
height = 200;
rate = 10;
rate_base= 1;
} else {
- swf->video_type = video_enc->codec_id;
- width = video_enc->width;
- height = video_enc->height;
- rate = video_enc->time_base.den;
- rate_base = video_enc->time_base.num;
+ width = swf->video_enc->width;
+ height = swf->video_enc->height;
+ rate = swf->video_enc->time_base.den;
+ rate_base = swf->video_enc->time_base.num;
}
- if (!audio_enc) {
- swf->audio_type = 0;
+ if (!swf->audio_enc)
swf->samples_per_frame = (44100. * rate_base) / rate;
- } else {
- swf->audio_type = audio_enc->codec_id;
- swf->samples_per_frame = (audio_enc->sample_rate * rate_base) / rate;
- }
+ else
+ swf->samples_per_frame = (swf->audio_enc->sample_rate * rate_base) / rate;
- put_tag(pb, "FWS");
+ avio_write(pb, "FWS", 3);
if (!strcmp("avm2", s->oformat->name))
version = 9;
- else if (video_enc && video_enc->codec_id == CODEC_ID_VP6F)
+ else if (swf->video_enc && swf->video_enc->codec_id == AV_CODEC_ID_VP6F)
version = 8; /* version 8 and above support VP6 codec */
- else if (video_enc && video_enc->codec_id == CODEC_ID_FLV1)
+ else if (swf->video_enc && swf->video_enc->codec_id == AV_CODEC_ID_FLV1)
version = 6; /* version 6 and above support FLV1 codec */
else
version = 4; /* version 4 for mpeg audio support */
- put_byte(pb, version);
+ avio_w8(pb, version);
- put_le32(pb, DUMMY_FILE_SIZE); /* dummy size
+ avio_wl32(pb, DUMMY_FILE_SIZE); /* dummy size
(will be patched if not streamed) */
put_swf_rect(pb, 0, width * 20, 0, height * 20);
- put_le16(pb, (rate * 256) / rate_base); /* frame rate */
- swf->duration_pos = url_ftell(pb);
- put_le16(pb, (uint16_t)(DUMMY_DURATION * (int64_t)rate / rate_base)); /* frame count */
+ avio_wl16(pb, (rate * 256) / rate_base); /* frame rate */
+ swf->duration_pos = avio_tell(pb);
+ avio_wl16(pb, (uint16_t)(DUMMY_DURATION * (int64_t)rate / rate_base)); /* frame count */
/* avm2/swf v9 (also v8?) files require a file attribute tag */
if (version == 9) {
put_swf_tag(s, TAG_FILEATTRIBUTES);
- put_le32(pb, 1<<3); /* set ActionScript v3/AVM2 flag */
+ avio_wl32(pb, 1<<3); /* set ActionScript v3/AVM2 flag */
put_swf_end_tag(s);
}
/* define a shape with the jpeg inside */
- if (video_enc && video_enc->codec_id == CODEC_ID_MJPEG) {
+ if (swf->video_enc && swf->video_enc->codec_id == AV_CODEC_ID_MJPEG) {
put_swf_tag(s, TAG_DEFINESHAPE);
- put_le16(pb, SHAPE_ID); /* ID of shape */
+ avio_wl16(pb, SHAPE_ID); /* ID of shape */
/* bounding rectangle */
put_swf_rect(pb, 0, width, 0, height);
/* style info */
- put_byte(pb, 1); /* one fill style */
- put_byte(pb, 0x41); /* clipped bitmap fill */
- put_le16(pb, BITMAP_ID); /* bitmap ID */
+ avio_w8(pb, 1); /* one fill style */
+ avio_w8(pb, 0x41); /* clipped bitmap fill */
+ avio_wl16(pb, BITMAP_ID); /* bitmap ID */
/* position of the bitmap */
put_swf_matrix(pb, (int)(1.0 * (1 << FRAC_BITS)), 0,
0, (int)(1.0 * (1 << FRAC_BITS)), 0, 0);
- put_byte(pb, 0); /* no line style */
+ avio_w8(pb, 0); /* no line style */
/* shape drawing */
init_put_bits(&p, buf1, sizeof(buf1));
put_bits(&p, 5, 0);
flush_put_bits(&p);
- put_buffer(pb, buf1, pbBufPtr(&p) - p.buf);
+ avio_write(pb, buf1, put_bits_ptr(&p) - p.buf);
put_swf_end_tag(s);
}
- if (audio_enc && audio_enc->codec_id == CODEC_ID_MP3) {
+ if (swf->audio_enc && swf->audio_enc->codec_id == AV_CODEC_ID_MP3) {
int v = 0;
/* start sound */
put_swf_tag(s, TAG_STREAMHEAD2);
- switch(audio_enc->sample_rate) {
- case 11025:
- v |= 1 << 2;
- break;
- case 22050:
- v |= 2 << 2;
- break;
- case 44100:
- v |= 3 << 2;
- break;
+ switch(swf->audio_enc->sample_rate) {
+ case 11025: v |= 1 << 2; break;
+ case 22050: v |= 2 << 2; break;
+ case 44100: v |= 3 << 2; break;
default:
/* not supported */
av_log(s, AV_LOG_ERROR, "swf does not support that sample rate, choose from (44100, 22050, 11025).\n");
return -1;
}
v |= 0x02; /* 16 bit playback */
- if (audio_enc->channels == 2)
+ if (swf->audio_enc->channels == 2)
v |= 0x01; /* stereo playback */
- put_byte(s->pb, v);
+ avio_w8(s->pb, v);
v |= 0x20; /* mp3 compressed */
- put_byte(s->pb, v);
- put_le16(s->pb, swf->samples_per_frame); /* avg samples per frame */
- put_le16(s->pb, 0);
+ avio_w8(s->pb, v);
+ avio_wl16(s->pb, swf->samples_per_frame); /* avg samples per frame */
+ avio_wl16(s->pb, 0);
put_swf_end_tag(s);
}
- put_flush_packet(s->pb);
+ avio_flush(s->pb);
return 0;
}
AVCodecContext *enc, const uint8_t *buf, int size)
{
SWFContext *swf = s->priv_data;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
/* Flash Player limit */
if (swf->swf_frame_number == 16000)
av_log(enc, AV_LOG_INFO, "warning: Flash Player limit of 16000 frames reached\n");
- if (swf->video_type == CODEC_ID_VP6F ||
- swf->video_type == CODEC_ID_FLV1) {
+ if (enc->codec_id == AV_CODEC_ID_VP6F ||
+ enc->codec_id == AV_CODEC_ID_FLV1) {
if (swf->video_frame_number == 0) {
/* create a new video object */
put_swf_tag(s, TAG_VIDEOSTREAM);
- put_le16(pb, VIDEO_ID);
- put_le16(pb, 15000); /* hard flash player limit */
- put_le16(pb, enc->width);
- put_le16(pb, enc->height);
- put_byte(pb, 0);
- put_byte(pb,codec_get_tag(swf_codec_tags,swf->video_type));
+ avio_wl16(pb, VIDEO_ID);
+ swf->vframes_pos = avio_tell(pb);
+ avio_wl16(pb, 15000); /* hard flash player limit */
+ avio_wl16(pb, enc->width);
+ avio_wl16(pb, enc->height);
+ avio_w8(pb, 0);
+ avio_w8(pb,ff_codec_get_tag(swf_codec_tags,enc->codec_id));
put_swf_end_tag(s);
/* place the video object for the first time */
put_swf_tag(s, TAG_PLACEOBJECT2);
- put_byte(pb, 0x36);
- put_le16(pb, 1);
- put_le16(pb, VIDEO_ID);
+ avio_w8(pb, 0x36);
+ avio_wl16(pb, 1);
+ avio_wl16(pb, VIDEO_ID);
put_swf_matrix(pb, 1 << FRAC_BITS, 0, 0, 1 << FRAC_BITS, 0, 0);
- put_le16(pb, swf->video_frame_number);
- put_tag(pb, "video");
- put_byte(pb, 0x00);
+ avio_wl16(pb, swf->video_frame_number);
+ avio_write(pb, "video", 5);
+ avio_w8(pb, 0x00);
put_swf_end_tag(s);
} else {
/* mark the character for update */
put_swf_tag(s, TAG_PLACEOBJECT2);
- put_byte(pb, 0x11);
- put_le16(pb, 1);
- put_le16(pb, swf->video_frame_number);
+ avio_w8(pb, 0x11);
+ avio_wl16(pb, 1);
+ avio_wl16(pb, swf->video_frame_number);
put_swf_end_tag(s);
}
/* set video frame data */
put_swf_tag(s, TAG_VIDEOFRAME | TAG_LONG);
- put_le16(pb, VIDEO_ID);
- put_le16(pb, swf->video_frame_number++);
- put_buffer(pb, buf, size);
+ avio_wl16(pb, VIDEO_ID);
+ avio_wl16(pb, swf->video_frame_number++);
+ avio_write(pb, buf, size);
put_swf_end_tag(s);
- } else if (swf->video_type == CODEC_ID_MJPEG) {
+ } else if (enc->codec_id == AV_CODEC_ID_MJPEG) {
if (swf->swf_frame_number > 0) {
/* remove the shape */
put_swf_tag(s, TAG_REMOVEOBJECT);
- put_le16(pb, SHAPE_ID); /* shape ID */
- put_le16(pb, 1); /* depth */
+ avio_wl16(pb, SHAPE_ID); /* shape ID */
+ avio_wl16(pb, 1); /* depth */
put_swf_end_tag(s);
/* free the bitmap */
put_swf_tag(s, TAG_FREECHARACTER);
- put_le16(pb, BITMAP_ID);
+ avio_wl16(pb, BITMAP_ID);
put_swf_end_tag(s);
}
put_swf_tag(s, TAG_JPEG2 | TAG_LONG);
- put_le16(pb, BITMAP_ID); /* ID of the image */
+ avio_wl16(pb, BITMAP_ID); /* ID of the image */
/* a dummy jpeg header seems to be required */
- put_be32(pb, 0xffd8ffd9);
+ avio_wb32(pb, 0xffd8ffd9);
/* write the jpeg image */
- put_buffer(pb, buf, size);
+ avio_write(pb, buf, size);
put_swf_end_tag(s);
/* draw the shape */
put_swf_tag(s, TAG_PLACEOBJECT);
- put_le16(pb, SHAPE_ID); /* shape ID */
- put_le16(pb, 1); /* depth */
+ avio_wl16(pb, SHAPE_ID); /* shape ID */
+ avio_wl16(pb, 1); /* depth */
put_swf_matrix(pb, 20 << FRAC_BITS, 0, 0, 20 << FRAC_BITS, 0, 0);
put_swf_end_tag(s);
}
- swf->swf_frame_number ++;
+ swf->swf_frame_number++;
/* streaming sound always should be placed just before showframe tags */
- if (swf->audio_type && swf->audio_in_pos) {
+ if (swf->audio_enc && av_fifo_size(swf->audio_fifo)) {
+ int frame_size = av_fifo_size(swf->audio_fifo);
put_swf_tag(s, TAG_STREAMBLOCK | TAG_LONG);
- put_le16(pb, swf->sound_samples);
- put_le16(pb, 0); // seek samples
- put_buffer(pb, swf->audio_fifo, swf->audio_in_pos);
+ avio_wl16(pb, swf->sound_samples);
+ avio_wl16(pb, 0); // seek samples
+ av_fifo_generic_read(swf->audio_fifo, pb, frame_size, &avio_write);
put_swf_end_tag(s);
/* update FIFO */
swf->sound_samples = 0;
- swf->audio_in_pos = 0;
}
/* output the frame */
put_swf_tag(s, TAG_SHOWFRAME);
put_swf_end_tag(s);
- put_flush_packet(s->pb);
+ avio_flush(s->pb);
return 0;
}
static int swf_write_audio(AVFormatContext *s,
- AVCodecContext *enc, const uint8_t *buf, int size)
+ AVCodecContext *enc, uint8_t *buf, int size)
{
SWFContext *swf = s->priv_data;
if (swf->swf_frame_number == 16000)
av_log(enc, AV_LOG_INFO, "warning: Flash Player limit of 16000 frames reached\n");
- if (swf->audio_in_pos + size >= AUDIO_FIFO_SIZE) {
+ if (av_fifo_size(swf->audio_fifo) + size > AUDIO_FIFO_SIZE) {
av_log(s, AV_LOG_ERROR, "audio fifo too small to mux audio essence\n");
return -1;
}
- memcpy(swf->audio_fifo + swf->audio_in_pos, buf, size);
- swf->audio_in_pos += size;
- swf->sound_samples += enc->frame_size;
+ av_fifo_generic_write(swf->audio_fifo, buf, size, NULL);
+ swf->sound_samples += av_get_audio_frame_duration(enc, size);
/* if audio only stream make sure we add swf frames */
- if (swf->video_type == 0)
+ if (!swf->video_enc)
swf_write_video(s, enc, 0, 0);
return 0;
static int swf_write_packet(AVFormatContext *s, AVPacket *pkt)
{
AVCodecContext *codec = s->streams[pkt->stream_index]->codec;
- if (codec->codec_type == CODEC_TYPE_AUDIO)
+ if (codec->codec_type == AVMEDIA_TYPE_AUDIO)
return swf_write_audio(s, codec, pkt->data, pkt->size);
else
return swf_write_video(s, codec, pkt->data, pkt->size);
static int swf_write_trailer(AVFormatContext *s)
{
SWFContext *swf = s->priv_data;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
AVCodecContext *enc, *video_enc;
int file_size, i;
video_enc = NULL;
for(i=0;i<s->nb_streams;i++) {
enc = s->streams[i]->codec;
- if (enc->codec_type == CODEC_TYPE_VIDEO)
+ if (enc->codec_type == AVMEDIA_TYPE_VIDEO)
video_enc = enc;
+ else
+ av_fifo_free(swf->audio_fifo);
}
put_swf_tag(s, TAG_END);
put_swf_end_tag(s);
- put_flush_packet(s->pb);
+ avio_flush(s->pb);
/* patch file size and number of frames if not streamed */
- if (!url_is_streamed(s->pb) && video_enc) {
- file_size = url_ftell(pb);
- url_fseek(pb, 4, SEEK_SET);
- put_le32(pb, file_size);
- url_fseek(pb, swf->duration_pos, SEEK_SET);
- put_le16(pb, video_enc->frame_number);
- url_fseek(pb, file_size, SEEK_SET);
+ if (s->pb->seekable && video_enc) {
+ file_size = avio_tell(pb);
+ avio_seek(pb, 4, SEEK_SET);
+ avio_wl32(pb, file_size);
+ avio_seek(pb, swf->duration_pos, SEEK_SET);
+ avio_wl16(pb, swf->video_frame_number);
+ avio_seek(pb, swf->vframes_pos, SEEK_SET);
+ avio_wl16(pb, swf->video_frame_number);
+ avio_seek(pb, file_size, SEEK_SET);
}
return 0;
}
-#ifdef CONFIG_SWF_MUXER
-AVOutputFormat swf_muxer = {
- "swf",
- "Flash format",
- "application/x-shockwave-flash",
- "swf",
- sizeof(SWFContext),
- CODEC_ID_MP3,
- CODEC_ID_FLV1,
- swf_write_header,
- swf_write_packet,
- swf_write_trailer,
+#if CONFIG_SWF_MUXER
+AVOutputFormat ff_swf_muxer = {
+ .name = "swf",
+ .long_name = NULL_IF_CONFIG_SMALL("SWF (ShockWave Flash)"),
+ .mime_type = "application/x-shockwave-flash",
+ .extensions = "swf",
+ .priv_data_size = sizeof(SWFContext),
+ .audio_codec = AV_CODEC_ID_MP3,
+ .video_codec = AV_CODEC_ID_FLV1,
+ .write_header = swf_write_header,
+ .write_packet = swf_write_packet,
+ .write_trailer = swf_write_trailer,
+ .flags = AVFMT_TS_NONSTRICT,
};
#endif
-#ifdef CONFIG_AVM2_MUXER
-AVOutputFormat avm2_muxer = {
- "avm2",
- "Flash 9 (AVM2) format",
- "application/x-shockwave-flash",
- NULL,
- sizeof(SWFContext),
- CODEC_ID_MP3,
- CODEC_ID_FLV1,
- swf_write_header,
- swf_write_packet,
- swf_write_trailer,
+#if CONFIG_AVM2_MUXER
+AVOutputFormat ff_avm2_muxer = {
+ .name = "avm2",
+ .long_name = NULL_IF_CONFIG_SMALL("SWF (ShockWave Flash) (AVM2)"),
+ .mime_type = "application/x-shockwave-flash",
+ .priv_data_size = sizeof(SWFContext),
+ .audio_codec = AV_CODEC_ID_MP3,
+ .video_codec = AV_CODEC_ID_FLV1,
+ .write_header = swf_write_header,
+ .write_packet = swf_write_packet,
+ .write_trailer = swf_write_trailer,
+ .flags = AVFMT_TS_NONSTRICT,
};
#endif
projects / ffmpeg / blobdiff