Differential D9879 Diff 32093 source/blender/imbuf/intern/anim_movie.c

Changeset View

Standalone View

source/blender/imbuf/intern/anim_movie.c

Show First 20 Lines • Show All 499 Lines • ▼ Show 20 Lines

#ifdef WITH_FFMPEG		#ifdef WITH_FFMPEG

BLI_INLINE bool need_aligned_ffmpeg_buffer(struct anim *anim)		BLI_INLINE bool need_aligned_ffmpeg_buffer(struct anim *anim)
{		{
return (anim->x & 31) != 0;		return (anim->x & 31) != 0;
}		}

		IMB_Downscale downscale_factor_to_downscale_index(const float downscale_factor)
		{
		if (downscale_factor > 32.0f) {
		return IMB_DOWNSCALE_32X;
		}

		if (downscale_factor <= 1.0f) {
		return IMB_DOWNSCALE_NONE;
		}

		return round_fl_to_int(log2(downscale_factor));
		}

		int downscale_index_to_downscale_factor(const IMB_Downscale downscale_index)
		{
		switch (downscale_index) {
		case IMB_DOWNSCALE_2X:
		return 2;
		case IMB_DOWNSCALE_4X:
		return 4;
		case IMB_DOWNSCALE_8X:
		return 8;
		case IMB_DOWNSCALE_16X:
		return 16;
		case IMB_DOWNSCALE_32X:
		return 32;
		default:
		return 1;
		}
		}

		static int ffmpeg_sws_context_alloc(struct anim *anim, const IMB_Downscale downscale_index)
		{
		const int scale_factor = downscale_index_to_downscale_factor(downscale_index);
		anim->img_convert_ctx[downscale_index] = sws_getContext(anim->x,
		anim->y,
		anim->pCodecCtx->pix_fmt,
		anim->x / scale_factor,
		anim->y / scale_factor,
		AV_PIX_FMT_RGBA,
		SWS_FAST_BILINEAR \| SWS_PRINT_INFO \|
		SWS_FULL_CHR_H_INT,
		NULL,
		NULL,
		NULL);

		if (!anim->img_convert_ctx[downscale_index]) {
		fprintf(stderr, "Can't transform color space??? Bailing out...\n");
		avcodec_close(anim->pCodecCtx);
		avformat_close_input(&anim->pFormatCtx);
		av_frame_free(&anim->pFrameRGB);
		av_frame_free(&anim->pFrameDeinterlaced);
		av_frame_free(&anim->pFrame);
		anim->pCodecCtx = NULL;
		return -1;
		}

		# ifdef FFMPEG_SWSCALE_COLOR_SPACE_SUPPORT

		/* The following for color space determination */
		int srcRange, dstRange, brightness, contrast, saturation;
		int *table;
		const int *inv_table;

		/* Try do detect if input has 0-255 YCbCR range (JFIF Jpeg MotionJpeg) */
		if (!sws_getColorspaceDetails(anim->img_convert_ctx[downscale_index],
		(int **)&inv_table,
		&srcRange,
		&table,
		&dstRange,
		&brightness,
		&contrast,
		&saturation)) {
		srcRange = srcRange \|\| anim->pCodecCtx->color_range == AVCOL_RANGE_JPEG;
		inv_table = sws_getCoefficients(anim->pCodecCtx->colorspace);

		if (sws_setColorspaceDetails(anim->img_convert_ctx[downscale_index],
		(int *)inv_table,
		srcRange,
		table,
		dstRange,
		brightness,
		contrast,
		saturation)) {
		fprintf(stderr, "Warning: Could not set libswscale colorspace details.\n");
		}
		}
		else {
		fprintf(stderr, "Warning: Could not set libswscale colorspace details.\n");
		}
		# endif

		return 0;
		}

static int startffmpeg(struct anim *anim)		static int startffmpeg(struct anim *anim)
{		{
int i, video_stream_index;		int i, video_stream_index;

AVCodec *pCodec;		AVCodec *pCodec;
AVFormatContext *pFormatCtx = NULL;		AVFormatContext *pFormatCtx = NULL;
AVCodecContext *pCodecCtx;		AVCodecContext *pCodecCtx;
AVRational frame_rate;		AVRational frame_rate;
AVStream *video_stream;		AVStream *video_stream;
int frs_num;		int frs_num;
double frs_den;		double frs_den;
int streamcount;		int streamcount;

# ifdef FFMPEG_SWSCALE_COLOR_SPACE_SUPPORT
/* The following for color space determination */
int srcRange, dstRange, brightness, contrast, saturation;
int *table;
const int *inv_table;
# endif

if (anim == NULL) {		if (anim == NULL) {
return (-1);		return (-1);
}		}

streamcount = anim->streamindex;		streamcount = anim->streamindex;

if (avformat_open_input(&pFormatCtx, anim->name, NULL, NULL) != 0) {		if (avformat_open_input(&pFormatCtx, anim->name, NULL, NULL) != 0) {
return -1;		return -1;
▲ Show 20 Lines • Show All 151 Lines • ▼ Show 20 Lines	static int startffmpeg(struct anim *anim)

if (pCodecCtx->has_b_frames) {		if (pCodecCtx->has_b_frames) {
anim->preseek = 25; /* FIXME: detect gopsize ... */		anim->preseek = 25; /* FIXME: detect gopsize ... */
}		}
else {		else {
anim->preseek = 0;		anim->preseek = 0;
}		}

anim->img_convert_ctx = sws_getContext(anim->x,		for (IMB_Downscale index = 0; index < IMB_DOWNSCALE_MAX_SLOT; index++) {
anim->y,		int error = ffmpeg_sws_context_alloc(anim, index);
anim->pCodecCtx->pix_fmt,		if (error != 0) {
anim->x,		return error;
anim->y,
AV_PIX_FMT_RGBA,
SWS_FAST_BILINEAR \| SWS_PRINT_INFO \| SWS_FULL_CHR_H_INT,
NULL,
NULL,
NULL);

if (!anim->img_convert_ctx) {
fprintf(stderr, "Can't transform color space??? Bailing out...\n");
avcodec_close(anim->pCodecCtx);
avformat_close_input(&anim->pFormatCtx);
av_frame_free(&anim->pFrameRGB);
av_frame_free(&anim->pFrameDeinterlaced);
av_frame_free(&anim->pFrame);
anim->pCodecCtx = NULL;
return -1;
}

# ifdef FFMPEG_SWSCALE_COLOR_SPACE_SUPPORT
/* Try do detect if input has 0-255 YCbCR range (JFIF Jpeg MotionJpeg) */
if (!sws_getColorspaceDetails(anim->img_convert_ctx,
(int **)&inv_table,
&srcRange,
&table,
&dstRange,
&brightness,
&contrast,
&saturation)) {
srcRange = srcRange \|\| anim->pCodecCtx->color_range == AVCOL_RANGE_JPEG;
inv_table = sws_getCoefficients(anim->pCodecCtx->colorspace);

if (sws_setColorspaceDetails(anim->img_convert_ctx,
(int *)inv_table,
srcRange,
table,
dstRange,
brightness,
contrast,
saturation)) {
fprintf(stderr, "Warning: Could not set libswscale colorspace details.\n");
}
}		}
else {
fprintf(stderr, "Warning: Could not set libswscale colorspace details.\n");
}		}
# endif

return 0;		return 0;
}		}

/* postprocess the image in anim->pFrame and do color conversion		/* postprocess the image in anim->pFrame and do color conversion
* and deinterlacing stuff.		* and deinterlacing stuff.
*		*
* Output is anim->last_frame		* Output is anim->last_frame
*/		*/

static void ffmpeg_postprocess(struct anim *anim)		static void ffmpeg_postprocess(struct anim *anim, const IMB_Downscale downscale_index)
{		{
AVFrame *input = anim->pFrame;		AVFrame *input = anim->pFrame;
ImBuf *ibuf = anim->last_frame;		ImBuf *ibuf = anim->last_frame;
int filter_y = 0;		int filter_y = 0;

if (!anim->pFrameComplete) {		if (!anim->pFrameComplete) {
return;		return;
}		}
Show All 27 Lines	else {
input = anim->pFrameDeinterlaced;		input = anim->pFrameDeinterlaced;
}		}
}		}

if (!need_aligned_ffmpeg_buffer(anim)) {		if (!need_aligned_ffmpeg_buffer(anim)) {
avpicture_fill((AVPicture *)anim->pFrameRGB,		avpicture_fill((AVPicture *)anim->pFrameRGB,
(unsigned char *)ibuf->rect,		(unsigned char *)ibuf->rect,
AV_PIX_FMT_RGBA,		AV_PIX_FMT_RGBA,
anim->x,		ibuf->x,
anim->y);		ibuf->y);
}		}

if (ENDIAN_ORDER == B_ENDIAN) {		if (ENDIAN_ORDER == B_ENDIAN) {
int *dstStride = anim->pFrameRGB->linesize;		int *dstStride = anim->pFrameRGB->linesize;
uint8_t **dst = anim->pFrameRGB->data;		uint8_t **dst = anim->pFrameRGB->data;
const int dstStride2[4] = {dstStride[0], 0, 0, 0};		const int dstStride2[4] = {dstStride[0], 0, 0, 0};
uint8_t *dst2[4] = {dst[0], 0, 0, 0};		uint8_t *dst2[4] = {dst[0], 0, 0, 0};
int x, y, h, w;		int x, y, h, w;
unsigned char *bottom;		unsigned char *bottom;
unsigned char *top;		unsigned char *top;

sws_scale(anim->img_convert_ctx,		sws_scale(anim->img_convert_ctx[downscale_index],
(const uint8_t const )input->data,		(const uint8_t const )input->data,
input->linesize,		input->linesize,
0,		0,
anim->y,		anim->y,
dst2,		dst2,
dstStride2);		dstStride2);

bottom = (unsigned char *)ibuf->rect;		bottom = (unsigned char *)ibuf->rect;
Show All 24 Lines	for (y = 0; y < h; y++) {
}		}
top -= 8 * w;		top -= 8 * w;
}		}
}		}
else {		else {
int *dstStride = anim->pFrameRGB->linesize;		int *dstStride = anim->pFrameRGB->linesize;
uint8_t **dst = anim->pFrameRGB->data;		uint8_t **dst = anim->pFrameRGB->data;
const int dstStride2[4] = {-dstStride[0], 0, 0, 0};		const int dstStride2[4] = {-dstStride[0], 0, 0, 0};
uint8_t dst2[4] = {dst[0] + (anim->y - 1) dstStride[0], 0, 0, 0};		uint8_t dst2[4] = {dst[0] + (ibuf->y - 1) dstStride[0], 0, 0, 0};

sws_scale(anim->img_convert_ctx,		sws_scale(anim->img_convert_ctx[downscale_index],
(const uint8_t const )input->data,		(const uint8_t const )input->data,
input->linesize,		input->linesize,
0,		0,
anim->y,		anim->y,
dst2,		dst2,
dstStride2);		dstStride2);
}		}

if (need_aligned_ffmpeg_buffer(anim)) {		if (need_aligned_ffmpeg_buffer(anim)) {
uint8_t *src = anim->pFrameRGB->data[0];		uint8_t *src = anim->pFrameRGB->data[0];
uint8_t dst = (uint8_t )ibuf->rect;		uint8_t dst = (uint8_t )ibuf->rect;
for (int y = 0; y < anim->y; y++) {		for (int y = 0; y < ibuf->y; y++) {
memcpy(dst, src, anim->x * 4);		memcpy(dst, src, ibuf->x * 4);
dst += anim->x * 4;		dst += ibuf->x * 4;
src += anim->pFrameRGB->linesize[0];		src += anim->pFrameRGB->linesize[0];
}		}
}		}

if (filter_y) {		if (filter_y) {
IMB_filtery(ibuf);		IMB_filtery(ibuf);
}		}
}		}
▲ Show 20 Lines • Show All 165 Lines • ▼ Show 20 Lines	while (*p) {
if (match_format(*p++, pFormatCtx)) {		if (match_format(*p++, pFormatCtx)) {
return true;		return true;
}		}
}		}

return false;		return false;
}		}

static ImBuf ffmpeg_fetchibuf(struct anim anim, int position, IMB_Timecode_Type tc)		static ImBuf ffmpeg_fill_ibuf(struct anim anim, const IMB_Downscale downscale_index)
		{
		const int scale_factor = downscale_index_to_downscale_factor(downscale_index);
		const int width = anim->x / scale_factor;
		const int height = anim->y / scale_factor;

		/* Certain versions of FFmpeg have a bug in libswscale which ends up in crash
		* when destination buffer is not properly aligned. For example, this happens
		* in FFmpeg 4.3.1. It got fixed later on, but for compatibility reasons is
		* still best to avoid crash.
		*
		* This is achieved by using own allocation call rather than relying on
		* IMB_allocImBuf() to do so since the IMB_allocImBuf() is not guaranteed
		* to perform aligned allocation.
		*
		* In theory this could give better performance, since SIMD operations on
		* aligned data are usually faster.
		*
		* Note that even though sometimes vertical flip is required it does not
		* affect on alignment of data passed to sws_scale because if the X dimension
		* is not 32 byte aligned special intermediate buffer is allocated.
		*
		* The issue was reported to FFmpeg under ticket #8747 in the FFmpeg tracker
		* and is fixed in the newer versions than 4.3.1. */
		IMB_freeImBuf(anim->last_frame);
		anim->last_frame = IMB_allocImBuf(width, height, 32, 0);
		anim->last_frame->rect = MEM_mallocN_aligned((size_t)4 * width * height, 32, "ffmpeg ibuf");
		anim->last_frame->mall \|= IB_rect;
		anim->last_frame->rect_colorspace = colormanage_colorspace_get_named(anim->colorspace);
		ffmpeg_postprocess(anim, downscale_index);
		IMB_refImBuf(anim->last_frame);
		return anim->last_frame;
		}

		static ImBuf ffmpeg_fetchibuf(struct anim anim,
		int position,
		IMB_Timecode_Type tc,
		const IMB_Downscale downscale_index)
{		{
int64_t pts_to_search = 0;		int64_t pts_to_search = 0;
double frame_rate;		double frame_rate;
double pts_time_base;		double pts_time_base;
long long st_time;		long long st_time;
struct anim_index *tc_index = 0;		struct anim_index *tc_index = 0;
AVStream *v_st;		AVStream *v_st;
int new_frame_index = 0; /* To quiet gcc barking... */		int new_frame_index = 0; /* To quiet gcc barking... */
Show All 34 Lines	av_log(anim->pFormatCtx,
"FETCH: looking for PTS=%lld "		"FETCH: looking for PTS=%lld "
"(pts_timebase=%g, frame_rate=%g, st_time=%lld)\n",		"(pts_timebase=%g, frame_rate=%g, st_time=%lld)\n",
(long long int)pts_to_search,		(long long int)pts_to_search,
pts_time_base,		pts_time_base,
frame_rate,		frame_rate,
st_time);		st_time);

if (anim->last_frame && anim->last_pts <= pts_to_search && anim->next_pts > pts_to_search) {		if (anim->last_frame && anim->last_pts <= pts_to_search && anim->next_pts > pts_to_search) {
		if (anim->last_downscale_index != downscale_index) {
		return ffmpeg_fill_ibuf(anim, downscale_index);
		}

av_log(anim->pFormatCtx,		av_log(anim->pFormatCtx,
AV_LOG_DEBUG,		AV_LOG_DEBUG,
"FETCH: frame repeat: last: %lld next: %lld\n",		"FETCH: frame repeat: last: %lld next: %lld\n",
(long long int)anim->last_pts,		(long long int)anim->last_pts,
(long long int)anim->next_pts);		(long long int)anim->next_pts);
IMB_refImBuf(anim->last_frame);		IMB_refImBuf(anim->last_frame);
anim->curposition = position;		anim->curposition = position;
return anim->last_frame;		return anim->last_frame;
▲ Show 20 Lines • Show All 89 Lines • ▼ Show 20 Lines	static ImBuf ffmpeg_fetchibuf(struct anim anim,
else if (position == 0 && anim->curposition == -1) {		else if (position == 0 && anim->curposition == -1) {
/* first frame without seeking special case... */		/* first frame without seeking special case... */
ffmpeg_decode_video_frame(anim);		ffmpeg_decode_video_frame(anim);
}		}
else {		else {
av_log(anim->pFormatCtx, AV_LOG_DEBUG, "FETCH: no seek necessary, just continue...\n");		av_log(anim->pFormatCtx, AV_LOG_DEBUG, "FETCH: no seek necessary, just continue...\n");
}		}

IMB_freeImBuf(anim->last_frame);		ffmpeg_fill_ibuf(anim, downscale_index);

/* Certain versions of FFmpeg have a bug in libswscale which ends up in crash
* when destination buffer is not properly aligned. For example, this happens
* in FFmpeg 4.3.1. It got fixed later on, but for compatibility reasons is
* still best to avoid crash.
*
* This is achieved by using own allocation call rather than relying on
* IMB_allocImBuf() to do so since the IMB_allocImBuf() is not guaranteed
* to perform aligned allocation.
*
* In theory this could give better performance, since SIMD operations on
* aligned data are usually faster.
*
* Note that even though sometimes vertical flip is required it does not
* affect on alignment of data passed to sws_scale because if the X dimension
* is not 32 byte aligned special intermediate buffer is allocated.
*
* The issue was reported to FFmpeg under ticket #8747 in the FFmpeg tracker
* and is fixed in the newer versions than 4.3.1. */
anim->last_frame = IMB_allocImBuf(anim->x, anim->y, 32, 0);
anim->last_frame->rect = MEM_mallocN_aligned((size_t)4 * anim->x * anim->y, 32, "ffmpeg ibuf");
anim->last_frame->mall \|= IB_rect;

anim->last_frame->rect_colorspace = colormanage_colorspace_get_named(anim->colorspace);

ffmpeg_postprocess(anim);

anim->last_pts = anim->next_pts;		anim->last_pts = anim->next_pts;

ffmpeg_decode_video_frame(anim);		ffmpeg_decode_video_frame(anim);

anim->curposition = position;		anim->curposition = position;

IMB_refImBuf(anim->last_frame);

return anim->last_frame;		return anim->last_frame;
}		}

static void free_anim_ffmpeg(struct anim *anim)		static void free_anim_ffmpeg(struct anim *anim)
{		{
if (anim == NULL) {		if (anim == NULL) {
return;		return;
}		}
Show All 15 Lines	if (!need_aligned_ffmpeg_buffer(anim)) {
* frame shares the same buffer as temporary ImBuf. In this case we		* frame shares the same buffer as temporary ImBuf. In this case we
* should not free the buffer when freeing the FFmpeg buffer.		* should not free the buffer when freeing the FFmpeg buffer.
*/		*/
avpicture_fill((AVPicture *)anim->pFrameRGB, NULL, AV_PIX_FMT_RGBA, anim->x, anim->y);		avpicture_fill((AVPicture *)anim->pFrameRGB, NULL, AV_PIX_FMT_RGBA, anim->x, anim->y);
}		}
av_frame_free(&anim->pFrameRGB);		av_frame_free(&anim->pFrameRGB);
av_frame_free(&anim->pFrameDeinterlaced);		av_frame_free(&anim->pFrameDeinterlaced);

sws_freeContext(anim->img_convert_ctx);		for (IMB_Downscale index = 0; index < IMB_DOWNSCALE_MAX_SLOT; index++) {
		if (anim->img_convert_ctx[index] != NULL) {
		sws_freeContext(anim->img_convert_ctx[index]);
		}
		}

IMB_freeImBuf(anim->last_frame);		IMB_freeImBuf(anim->last_frame);
if (anim->next_packet.stream_index != -1) {		if (anim->next_packet.stream_index != -1) {
av_free_packet(&anim->next_packet);		av_free_packet(&anim->next_packet);
}		}
}		}
anim->duration_in_frames = 0;		anim->duration_in_frames = 0;
}		}

▲ Show 20 Lines • Show All 61 Lines • ▼ Show 20 Lines	#endif
return ibuf;		return ibuf;
}		}

struct ImBuf IMB_anim_previewframe(struct anim anim)		struct ImBuf IMB_anim_previewframe(struct anim anim)
{		{
struct ImBuf *ibuf = NULL;		struct ImBuf *ibuf = NULL;
int position = 0;		int position = 0;

ibuf = IMB_anim_absolute(anim, 0, IMB_TC_NONE, IMB_PROXY_NONE);		ibuf = IMB_anim_absolute(anim, 0, IMB_TC_NONE, IMB_PROXY_NONE, IMB_DOWNSCALE_NONE);
if (ibuf) {		if (ibuf) {
IMB_freeImBuf(ibuf);		IMB_freeImBuf(ibuf);
position = anim->duration_in_frames / 2;		position = anim->duration_in_frames / 2;
ibuf = IMB_anim_absolute(anim, position, IMB_TC_NONE, IMB_PROXY_NONE);		ibuf = IMB_anim_absolute(anim, position, IMB_TC_NONE, IMB_PROXY_NONE, IMB_DOWNSCALE_NONE);
}		}
return ibuf;		return ibuf;
}		}

struct ImBuf IMB_anim_absolute(struct anim anim,		struct ImBuf IMB_anim_absolute(struct anim anim,
int position,		int position,
IMB_Timecode_Type tc,		IMB_Timecode_Type tc,
IMB_Proxy_Size preview_size)		IMB_Proxy_Size preview_size,
		const IMB_Downscale downscale_index)
{		{
struct ImBuf *ibuf = NULL;		struct ImBuf *ibuf = NULL;
char head[256], tail[256];		char head[256], tail[256];
unsigned short digits;		unsigned short digits;
int pic;		int pic;
int filter_y;		int filter_y;
if (anim == NULL) {		if (anim == NULL) {
return NULL;		return NULL;
Show All 20 Lines	if (preview_size == IMB_PROXY_NONE) {
}		}
}		}
else {		else {
struct anim *proxy = IMB_anim_open_proxy(anim, preview_size);		struct anim *proxy = IMB_anim_open_proxy(anim, preview_size);

if (proxy) {		if (proxy) {
position = IMB_anim_index_get_frame_index(anim, tc, position);		position = IMB_anim_index_get_frame_index(anim, tc, position);

return IMB_anim_absolute(proxy, position, IMB_TC_NONE, IMB_PROXY_NONE);		return IMB_anim_absolute(proxy, position, IMB_TC_NONE, IMB_PROXY_NONE, downscale_index);
}		}
}		}

switch (anim->curtype) {		switch (anim->curtype) {
case ANIM_SEQUENCE:		case ANIM_SEQUENCE:
pic = an_stringdec(anim->first, head, tail, &digits);		pic = an_stringdec(anim->first, head, tail, &digits);
pic += position;		pic += position;
an_stringenc(anim->name, head, tail, digits, pic);		an_stringenc(anim->name, head, tail, digits, pic);
Show All 14 Lines	case ANIM_AVI:
ibuf = avi_fetchibuf(anim, position);		ibuf = avi_fetchibuf(anim, position);
if (ibuf) {		if (ibuf) {
anim->curposition = position;		anim->curposition = position;
}		}
break;		break;
#endif		#endif
#ifdef WITH_FFMPEG		#ifdef WITH_FFMPEG
case ANIM_FFMPEG:		case ANIM_FFMPEG:
ibuf = ffmpeg_fetchibuf(anim, position, tc);		ibuf = ffmpeg_fetchibuf(anim, position, tc, downscale_index);
if (ibuf) {		if (ibuf) {
anim->curposition = position;		anim->curposition = position;
		anim->last_downscale_index = downscale_index;
}		}
filter_y = 0; /* done internally */		filter_y = 0; /* done internally */
break;		break;
#endif		#endif
}		}

if (ibuf) {		if (ibuf) {
if (filter_y) {		if (filter_y) {
▲ Show 20 Lines • Show All 61 Lines • ▼ Show 20 Lines

int IMB_anim_get_preseek(struct anim *anim)		int IMB_anim_get_preseek(struct anim *anim)
{		{
return anim->preseek;		return anim->preseek;
}		}

int IMB_anim_get_image_width(struct anim *anim)		int IMB_anim_get_image_width(struct anim *anim)
{		{
		/* Anim not initialized - initialize it. */
		if (anim->curtype == 0) {
		startffmpeg(anim);
		}
return anim->x;		return anim->x;
}		}

int IMB_anim_get_image_height(struct anim *anim)		int IMB_anim_get_image_height(struct anim *anim)
{		{
		/* Anim not initialized - initialize it. */
		if (anim->curtype == 0) {
		startffmpeg(anim);
		}
return anim->y;		return anim->y;
}		}