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https://git.ffmpeg.org/ffmpeg.git
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add deinterlacing support - add new image converter support
Originally committed as revision 64 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Fabrice Bellard
parent
2cc8ae9676
commit
cfcf0ffda6
207
ffmpeg.c
207
ffmpeg.c
@ -78,6 +78,7 @@ static int video_qscale = 0;
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static int video_disable = 0;
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static int video_codec_id = CODEC_ID_NONE;
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static int same_quality = 0;
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static int do_deinterlace = 0;
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static int gop_size = 12;
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static int intra_only = 0;
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@ -449,26 +450,24 @@ int av_grab(AVFormatContext *s)
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}
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if (use_video) {
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AVPicture *picture1;
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AVPicture picture;
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UINT8 *pict_buffer;
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AVPicture *picture1, *picture2, *picture;
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AVPicture picture_tmp0, picture_tmp1;
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ret = url_read(video_handle, picture_in_buf, picture_size);
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if (ret < 0)
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break;
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picture2 = &picture_tmp0;
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avpicture_fill(picture2, picture_in_buf, pix_fmt, width, height);
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if (pix_fmt != PIX_FMT_YUV420P) {
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pict_buffer = picture_420p;
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img_convert_to_yuv420(pict_buffer, picture_in_buf, pix_fmt, width, height);
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picture = &picture_tmp1;
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img_convert(picture, PIX_FMT_YUV420P,
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picture2, pix_fmt,
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width, height);
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} else {
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pict_buffer = picture_in_buf;
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picture = picture2;
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}
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/* build a picture storage */
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picture.data[0] = pict_buffer;
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picture.data[1] = picture.data[0] + width * height;
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picture.data[2] = picture.data[1] + (width * height) / 4;
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picture.linesize[0] = width;
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picture.linesize[1] = width / 2;
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picture.linesize[2] = width / 2;
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for(i=0;i<s->nb_streams;i++) {
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ost = ost_table[i];
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@ -485,9 +484,9 @@ int av_grab(AVFormatContext *s)
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if (ost->video_resample) {
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picture1 = &ost->pict_tmp;
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img_resample(ost->img_resample_ctx,
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picture1, &picture);
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picture1, picture);
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} else {
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picture1 = &picture;
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picture1 = picture;
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}
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ret = avcodec_encode_video(enc, video_buffer,
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sizeof(video_buffer),
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@ -662,26 +661,89 @@ static void do_audio_out(AVFormatContext *s,
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}
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/* write a picture to a raw mux */
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static void write_picture(AVFormatContext *s, int index, AVPicture *picture, int w, int h)
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static void write_picture(AVFormatContext *s, int index, AVPicture *picture,
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int pix_fmt, int w, int h)
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{
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UINT8 *buf, *src, *dest;
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int size, j, i;
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size = avpicture_get_size(pix_fmt, w, h);
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buf = malloc(size);
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if (!buf)
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return;
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/* XXX: not efficient, should add test if we can take
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directly the AVPicture */
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size = (w * h) * 3 / 2;
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buf = malloc(size);
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dest = buf;
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for(i=0;i<3;i++) {
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if (i == 1) {
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w >>= 1;
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h >>= 1;
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switch(pix_fmt) {
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case PIX_FMT_YUV420P:
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dest = buf;
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for(i=0;i<3;i++) {
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if (i == 1) {
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w >>= 1;
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h >>= 1;
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}
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src = picture->data[i];
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for(j=0;j<h;j++) {
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memcpy(dest, src, w);
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dest += w;
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src += picture->linesize[i];
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}
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}
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src = picture->data[i];
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break;
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case PIX_FMT_YUV422P:
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size = (w * h) * 2;
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buf = malloc(size);
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dest = buf;
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for(i=0;i<3;i++) {
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if (i == 1) {
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w >>= 1;
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}
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src = picture->data[i];
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for(j=0;j<h;j++) {
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memcpy(dest, src, w);
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dest += w;
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src += picture->linesize[i];
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}
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}
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break;
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case PIX_FMT_YUV444P:
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size = (w * h) * 3;
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buf = malloc(size);
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dest = buf;
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for(i=0;i<3;i++) {
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src = picture->data[i];
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for(j=0;j<h;j++) {
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memcpy(dest, src, w);
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dest += w;
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src += picture->linesize[i];
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}
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}
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break;
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case PIX_FMT_YUV422:
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size = (w * h) * 2;
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buf = malloc(size);
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dest = buf;
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src = picture->data[0];
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for(j=0;j<h;j++) {
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memcpy(dest, src, w);
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dest += w;
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src += picture->linesize[i];
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memcpy(dest, src, w * 2);
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dest += w * 2;
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src += picture->linesize[0];
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}
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break;
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case PIX_FMT_RGB24:
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case PIX_FMT_BGR24:
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size = (w * h) * 3;
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buf = malloc(size);
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dest = buf;
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src = picture->data[0];
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for(j=0;j<h;j++) {
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memcpy(dest, src, w * 3);
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dest += w * 3;
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src += picture->linesize[0];
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}
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break;
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default:
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return;
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}
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s->format->write_packet(s, index, buf, size);
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free(buf);
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@ -691,23 +753,75 @@ static void write_picture(AVFormatContext *s, int index, AVPicture *picture, int
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static void do_video_out(AVFormatContext *s,
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AVOutputStream *ost,
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AVInputStream *ist,
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AVPicture *pict)
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AVPicture *picture1)
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{
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int n1, n2, nb, i, ret, frame_number;
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AVPicture *picture;
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AVPicture *picture, *picture2, *pict;
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AVPicture picture_tmp1, picture_tmp2;
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UINT8 video_buffer[128*1024];
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AVCodecContext *enc;
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UINT8 *buf = NULL, *buf1 = NULL;
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AVCodecContext *enc, *dec;
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enc = &ost->st->codec;
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dec = &ist->st->codec;
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frame_number = ist->frame_number;
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/* first drop frame if needed */
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n1 = ((INT64)frame_number * enc->frame_rate) / ist->st->codec.frame_rate;
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n2 = (((INT64)frame_number + 1) * enc->frame_rate) / ist->st->codec.frame_rate;
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n1 = ((INT64)frame_number * enc->frame_rate) / dec->frame_rate;
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n2 = (((INT64)frame_number + 1) * enc->frame_rate) / dec->frame_rate;
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nb = n2 - n1;
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if (nb <= 0)
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return;
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/* deinterlace : must be done before any resize */
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if (do_deinterlace) {
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int size;
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/* create temporary picture */
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size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
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buf1 = malloc(size);
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if (!buf1)
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return;
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picture2 = &picture_tmp2;
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avpicture_fill(picture2, buf1, dec->pix_fmt, dec->width, dec->height);
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if (avpicture_deinterlace(picture2, picture1,
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dec->pix_fmt, dec->width, dec->height) < 0) {
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/* if error, do not deinterlace */
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free(buf1);
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buf1 = NULL;
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picture2 = picture1;
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}
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} else {
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picture2 = picture1;
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}
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/* convert pixel format if needed */
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if (enc->pix_fmt != dec->pix_fmt) {
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int size;
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/* create temporary picture */
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size = avpicture_get_size(enc->pix_fmt, dec->width, dec->height);
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buf = malloc(size);
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if (!buf)
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return;
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pict = &picture_tmp1;
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avpicture_fill(pict, buf, enc->pix_fmt, dec->width, dec->height);
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if (img_convert(pict, enc->pix_fmt,
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picture2, dec->pix_fmt,
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dec->width, dec->height) < 0) {
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fprintf(stderr, "pixel format conversion not handled\n");
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goto the_end;
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}
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} else {
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pict = picture2;
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}
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/* XXX: resampling could be done before raw format convertion in
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some cases to go faster */
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/* XXX: only works for YUV420P */
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if (ost->video_resample) {
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picture = &ost->pict_tmp;
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img_resample(ost->img_resample_ctx, picture, pict);
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@ -722,16 +836,21 @@ static void do_video_out(AVFormatContext *s,
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/* handles sameq here. This is not correct because it may
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not be a global option */
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if (same_quality) {
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ost->st->codec.quality = ist->st->codec.quality;
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enc->quality = dec->quality;
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}
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ret = avcodec_encode_video(&ost->st->codec,
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ret = avcodec_encode_video(enc,
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video_buffer, sizeof(video_buffer),
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picture);
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s->format->write_packet(s, ost->index, video_buffer, ret);
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} else {
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write_picture(s, ost->index, picture, enc->width, enc->height);
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write_picture(s, ost->index, picture, enc->pix_fmt, enc->width, enc->height);
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}
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}
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the_end:
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if (buf)
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free(buf);
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if (buf1)
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free(buf1);
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}
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//#define HEX_DUMP
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@ -1101,13 +1220,10 @@ static int av_encode(AVFormatContext **output_files,
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if (ist->st->codec.codec_id == CODEC_ID_RAWVIDEO) {
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int size;
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size = (ist->st->codec.width * ist->st->codec.height);
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picture.data[0] = ptr;
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picture.data[1] = picture.data[0] + size;
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picture.data[2] = picture.data[1] + size / 4;
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picture.linesize[0] = ist->st->codec.width;
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picture.linesize[1] = ist->st->codec.width / 2;
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picture.linesize[2] = ist->st->codec.width / 2;
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avpicture_fill(&picture, ptr,
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ist->st->codec.pix_fmt,
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ist->st->codec.width,
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ist->st->codec.height);
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ret = len;
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} else {
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data_size = (ist->st->codec.width * ist->st->codec.height * 3) / 2;
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@ -1800,6 +1916,11 @@ void opt_output_file(const char *filename)
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video_enc->flags |= CODEC_FLAG_QSCALE;
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video_enc->quality = video_qscale;
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}
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/* XXX: need to find a way to set codec parameters */
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if (oc->format == &ppm_format ||
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oc->format == &ppmpipe_format) {
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video_enc->pix_fmt = PIX_FMT_RGB24;
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}
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oc->streams[nb_streams] = st;
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nb_streams++;
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@ -2013,6 +2134,8 @@ const OptionDef options[] = {
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{ "an", OPT_BOOL, {int_arg: &audio_disable}, "disable audio" },
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{ "ad", HAS_ARG | OPT_EXPERT, {opt_audio_device}, "set audio device", "device" },
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{ "acodec", HAS_ARG | OPT_EXPERT, {opt_audio_codec}, "force audio codec", "codec" },
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{ "deinterlace", OPT_BOOL | OPT_EXPERT, {int_arg: &do_deinterlace},
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"deinterlace pictures" },
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{ "benchmark", OPT_BOOL | OPT_EXPERT, {int_arg: &do_benchmark},
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"add timings for benchmarking" },
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